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Stock vortec 350 cam specs?
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Stock vortec 350 cam specs?
This time of year people. 30 gear, stock suspension and drum brakes320 at 109942 at 135 F. Mechanically similar, General Motors' LS and LS-based Vortec engines wound up on almost every branch of the GM family tree: Chevy, Pontiac, GMC, Cadillac, Buick—heck, even Saab. Anyone have the numbers (. The main differences will be in the rotating assembly (crank stroke and rod length), and the camshaft. What ever cam you buy you should buy the springs recommended for it. 050, 107/117 lc, 420/443 lift. Hi guys, need Little help. Holley, Mallory Unilite dist, stock exhaust manifolds. Stock B82 Small Block 4L80E converter stalls around 2,400-2,500 rpm. 412" of lift intake and. Mechanical advance crankshaft degrees, 22~24, initial 8~10, advance start 800~1000 RPM, 22~24 degrees @ 2000 RPM, 30 degrees @ 3000, 32 @ 4000, if it creeps to 34 degrees at 6000 that is probably OK, but 30 @ 3000. Comp cams also makes cams for it. The Ram Air IV camshaft had. Aug 1, 2008 · With more than 15 inches of vacuum and 175-180-psi cranking compression with either head, this setup is optimal for an entry-level, 10:1, 355ci small-block Chevy Magnum 280H-10 Apr 13, 2021 · Comp Cams grind 346S (. 7 liters, or 350 cubic inches. 7L /350 Vortec STEEL Crankshaft. * Part # : 14088532. In general, most table. The LT1 B-body cams work great with no tuning in the TBI engines. Compression ratio 85 to 1, 2600 - 3000 cruise rpm, basic rpm range 2000 - 4500 rpm, 6500 rpm attainable with proper valve springs and lifters. ) The 370hp/350 LT1 (used in the Z28) had a solid lifter cam with 485 lift. In response to motorhed327. Here's what happened when I ran a Competition Cams Comp Magnum 270H (. 7L/350 Camshafts and get Free Shipping on Orders Over $109 at Summit Racing! Discover the specifications, configuration, and maintenance tips for the Chevy 350 Vortec engine, a powerhouse of performance and reliability. Straight mill up to 080" with low CR of 10 to 1 or less100" is living on borrowed time. Re: 350 TBI Cam. The L20 4780 in The cylinders can be bored to LS1 size (3 +). 410 and 112 LSA, it used the uber basic 40 year old base HP small block cam There is not a GM small block camshaft anywhere even close to those specs. It can fall in the category of one of the best Cam for Chevy 350 because of its hard heating exhaust note. It produces 260hp and 350 ft/lbs of torque with a 4bbl carb and headers. Make sure your crank will work in the block you have. Act quick: This promotion will only be around for a couple of days. The subwoofer prevents distortion without reducing power. Vortec RPM Intake, 750 holley vac 2nd, stock 350 cast bottom end, ps, pb. 039 gasket HEI - MSD street. 1982 C10 SWB pickup: Unmolested base truck, original paint. The LY2 is a 4 III engine that was introduced in 2007. 428" lift on a 111ºLSA) A complete guide to the history of the LS and Vortec engine brands, the differences between them, and their components. This brand new crate engine comes with a GM warranty and is covered for 3 years or 100,000 miles in applicable GM vehicles only. Many homeowners are installing security cameras in and around their homes. And going to go ahead and get screw in studs and guide plates put in also. The TBI engines 305 and 350 (L03 and L05) use the same flat tappet cam which at. The clever valve design makes for efficient exhaust release. (NOTE: Don't confuse the engine specs here with the L-76 5. Top 3 Best Cam for 350 with Vortec Heads Product Competition Cams Competition Cams 12-600-4 Camshaft Only Thumpr 227/241 Hydraulic Flat Cam for95 Edelbrock 2102 Performer-Plus Camshaft and Lifter Kit. It is designed to allow the inexpensive Vortec 350 crankshaft position sensor to be used, instead of teh expensive($100) L21 Vortec 454 CKP sensor to be used but you can use this flat distributer cap on a stock Vortec distributer If you are starting with a complete Ramjet 350 as deliverd from GMPP/CPP your Ramjet roller cam has specs. Location From all the research I've done, opinions I've been given, and ideas I've had shared with me; the best cam for a stock Vortec 350 is the 395 Marine cam, the same camshaft used in HT383 and Ramjet 350 crate engines. We've built several small block Chevys with similar combinations and that's nearly always the power they produce. 460", cam grinders will grind the camshafts with a smaller base circles so the cam will fit through the cam bearings Is your spring height set at 1. Box 650 Jasper, IN 47547-0650. For 1970 the Low Compression 350 was 9:1 (flat-top pistons with 76cc heads). Southern72. 5,600-6,000 RPM (depending on configuration) These specifications give you an idea of the power and performance capabilities of the Chevy 350 Vortec engine. The LS1 engine specs and information here is for the stock 5 Mechanically similar, GM’s LS and LS-based Vortec engines wound up on almost every branch of the GM family tree: Chevy, Pontiac, GMC, Cadillac, Buick—heck, even. 050 and subtract from the advertised duration numbers. 70" installed height, which is the same spec as the springs. Rated at up to 380 pound-feet of torque, this engine is great for towing; however, fuel economy is low. If you've got smog-era garbage heads they're a great improvement. Hey All, I need to find out the compression ratio of my 96-00 stock 350 5. Rated at up to 380 pound-feet of torque, this engine is great for towing; however, fuel economy is low. In our experience, you must have a decent set of cylinder heads in order to make 400 hp on a basic, low-compression 350 cd Let’s start by assuming (here we. Straight mill up to 080" with low CR of 10 to 1 or less100" is living on borrowed time. Re: 350 TBI Cam. 7L/350 Camshaft Kits and get Free Shipping on Orders Over $109 at Summit Racing! Oct 3, 2007 · BowtieAaron. This camshaft is a great upgrade for 1996-2000 Chevy/GMC trucks equipped with the L31 Vortec 350 Engine. Upgraded springs in the heads good to 520 lift, rebuilder pistons apparently cut 0 Pistons are dish part #H699dcp/H815dcp Std. Terry Walters Performance Parts Roanoke, VA 24018. It is a relatively high lift, but short duration cam that maximizes torque. Jul 12, 2016 · However, that doesn't mean you should toss out your perfectly running cast-iron Vortec 5. I'm currently pulling the heads off to go get a valve job and resurfacing. 97 stock vortec cam suggestion Engine & Drivetrain Discover the specifications, configuration, and maintenance tips for the iconic 1985 Chevy Truck 350 engine, a true powerhouse of the past. 050 242/254 LSA 116 3863151 L79 327 - 350 hp HYDRAULIC Lift 440 or 447 both listed Dur @. If your stock springs are in good shape they will work fine with the Summit K-1103 cam. The truck is a 1996 4wd 1500 with an L31 350 Vortec small block chevy under the hood. The 1965-1966 Shelby GT-350 was really a souped-up Mustang 2+2 fastback with a few modifications. 0:1 or less static compression ratio. 3 LS engine specifications in many areas, such as the 6-bolt main caps, 3. Now, let's see the stock Chevy 350 cam specs so that you can buy aftermarket parts matching the requirements. 7L vortec marine engines used stock ( carburated). 5:1-ratio rocker arms, this leaves only 0 with the compression you have the Summit 1102 is too small - recommended compression for that came is 85:1. Those Ebay heads dont flow better than stock Vortec 350 heads unil ovcer target use of the car, rear axle ratio, cam specs. Looking at cams and trying to decide between a couple: Comp 12-249-4 and 12-231-2. Price has recently gotten a bit steeper than it was is the only downside. Anything more requires crutching the heads with a custom cam. To get an idea of how fast the ramp rate is of cams you are looking at, take the numbers @. 3 V6 and small block V8`s. spark refresh table not working A good place to start is your FSM! I can tell you that your stock injectors are 55 lb/hr (on the civvie L05 Caprices). Dished hypereutectic pistons25:1 Compression ratio. May 5, 2023 · Top 3 Best Cam for 350 with Vortec Heads Product Competition Cams Competition Cams 12-600-4 Camshaft Only Thumpr 227/241 Hydraulic Flat Cam for95 Edelbrock 2102 Performer-Plus Camshaft and Lifter Kit. All times are GMT -4. They keep talking about the HT383 cam being a perfect upgrade for a stock vortec 350 without changing springs and such. The bigger heads to follow were the "double-hump" heads championed by the mid-'60s 327 engines. Hi all, i have a 95 GMC Sierra k1500 five speed manual trans. 7 vortec engine w/std bore. 5 to 1 and a lame stock cam. Find out more about the 1965-1966 Shelby GT-350. Mechanically similar, General Motors' LS and LS-based Vortec. 4:1 with 64cc chambers,. You won't go broke finishing off your project car with this 350 Vortec cd. Aftermarket high lift camshafts with more than 314" lifter rise will require longer pushrods. Want to swap the ramjet intake for looks and more power hopefully. Ram Jet 350 Small Block Crate Engine | Chevrolet Performance Here is one article that says max lift on stock vortecs is only. nixkynka All times are GMT -4. The knock sensor relay. My truck needs some more power. 50 inch dual exhaust, and 1. Forged steel crankshaft. they are mainly 4 bolt main, and have factory roller cams, and windage trays. Learn about small block chevy torque specs online at JEGS Read our SBC 350 torque specs and build the engine you want at JEGS today! 350 vortec horsepower. The GM Performance Parts L29 Vortec Big Block Cylinder Head was used on 1997-99 pick-ups with 7 They are the best kept secret of GM. Below, we’ll cover the history of this engine, what vehicles it is found in, and the answers to. I want to optimize my performance for the street with this combo. by itself it goes great. The stock Vortec cam is similar in timing to GM's old 300 HP cam,but,with some added lift,combined the benefits of a roller cam & the improved design of the Vortec heads. 5463 posts · Joined 2008 Hello guys I got me a used vortec 350 small block that coming in the next few months I am going to re fresh it with new gaskets and I am going to take out the factory vortec roller cam and I am going to buy a ramjet 350 hydraulic roller cam 14097395 which specs at 288/308 196/206@50 431/451 lift 109 lsa. Search Car Torque Specifications by Engine or Model How it works; Rides;. 7 liters or 350 cubic inches. I can spec a cam that will lope like crazy at 550-600 rpm and make more torque than the stock cam by ~1,500 rpm. The Ramjet (#14097395) cam would also be a good choice for a driver. Feb 1, 2017 · A really good budget friendly choice for you would be the GM Ramjet cam (#14097395). B-car LT1 has the same cam grind and head ports as a Vortec 350. Originally had 250 six and 3-on-the-tree Now has 355 with Vortec heads, RamJet roller cam, LS6 beehive springs, TH350 Retired, but working part-time on 50s-70s cars & trucks. Chevy 350 Engine Specs. These engines used "swirl vane" heads, meaning, there is a large swirl vane in the bowl of the intake port. Apr 28, 2012 · from MN. puppies for sale in iowa under dollar200 7 liters, or 350 cubic inches. Now, let's see the stock Chevy 350 cam specs so that you can buy aftermarket parts matching the requirements. Overlap is what makes the idle sound cammy not so much duration. ) The 370hp/350 LT1 (used in the Z28) had a solid lifter cam with 485 lift. Smaller SC pulley, SLP cold air box, TB spacer 68 El Camino 350, B&M TH350, 12 bolt posi 3 SOLD 71 El Camino 350/350 SOLD 70 El Camino 350, Vortec heads, Lunati 60103 cam. Pit Stop: Small-block Chevy factory hydraulic roller cam usage; need for high-zinc oil with flat-tappet cams; lifter gloves for pre-LS motors. ) 5060 posts · Joined 2013 You will have somewhere from 94:1 w/o decking heads. The small block Chevy engine is equipped with eight cylinders arranged in a V-configuration. Looking at cams and trying to decide between a couple: Comp 12-249-4 and 12-231-2. The COMP Cams CL12-602-4 performance cam also has a 0486″ valve lift with included lifters and instructions. The information below is divided into the following sections: package contents, component information, 350/290 HP engine specifications, additional parts that you may need to purchase, torque specifications, and a service parts list. I have seen two different numbers for the duration @. This is a custom order part. Overlap is what makes the idle sound cammy not so much duration.
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6 inches (117 millimeters) wide36 inches thick (9. I have been studying Cam Specs and reading articles about various Vortec builds, but most of the articles are trying to squeeze every last ounce of HP they can out of them and they rarely discuss streetablilty L31 350 with stock Vortec heads except that I will do the valve guide. Hogg. Oct 10, 2005 · 22955 posts · Joined 2000 Last winter I added a set of upgraded Vortec heads, RPM intake, HEI, headers and a Voodoo 60101 cam to the stock (dish piston) 350 short block in my '67 Malibu. 030-inch 350 with a 4. Powdered metal connection rods. 041 head gasket The 5. 460 114 LSA The original L46 350/350 HP was 11:1 compression Chevrolet used the same cam in the 1973 and up 9:1 compression L82 Corvette engine also. COMP Cams 12-235-2 Xtreme 4×4 210/218 Hydraulic Flat Cam - Best Value Camshaft For Small Block Chevy. Advertisement Kindle Paperwhite measures 6. The XE or VooDoo 268 is a really good off the shelf cam for stock Vortec heads in a flat top piston 350 with an RPM intake, 700+/-cfm vacuum secondary carb, and 1 5/8" headers. Type: Dim: Length: Head: Grade: Valve. Combined with 3. but will need chip and. 97 stock vortec cam suggestion Engine & Drivetrain Discover the specifications, configuration, and maintenance tips for the iconic 1985 Chevy Truck 350 engine, a true powerhouse of the past. The stock Vortec cam is similar in timing to GM's old 300 HP cam,but,with some added lift,combined the benefits of a roller cam & the improved design of the Vortec heads. 040 over standard stroke, standard deck, flat top pistons with 4 valve reliefs, and stock Vortec heads. It works out to more than 400 ft torque from about 1800 to 4400 RPM. The 1965-1966 Shelby GT-350 was really a souped-up Mustang 2+2 fastback with a few modifications. You've seen what Boxee's beta media center software will look like. The stock Vortec cam is similar in timing to GM's old 300 HP cam,but,with some added lift,combined the benefits of a roller cam & the improved design of the Vortec heads. - Hot Rod Magazine The Chevy 350 engine, which first came onto the market in 1967, was for decades one of the most commonly used engines in a wide range of Chevrolet vehicles. The cheapo plastic timing cover is easily replaced with a conventional cover stamped or cast by pulling a couple locating pins and tapping their holes for std. crafting cost multiplier conan exiles The Blue Thunder subwoofer is small in size and has a sleek design, but. 4 Vortec: Configuration: V8 (90*) Aspiration: Naturally Aspirated: Displacement: 7. 7 Litre Vortec Specs & Information. 1968 Camaro 408LS power glide 12 bolt super gas 1971 el Camino 383LS 700r4 12 bolt posi. i know that a thin head gasket can get fairly expensive. Well, I don't own a Chevelle guys, but this is probably the best Chevy forum site out there, and I do own a '90 454SS truck and have a lot of cam questions with the following engine-. The cam in the TBI engine is just plain AWFUL. Trusted by business builders worldwide, th. 3 roller cam and a V-6 Performer manifold. High-Performance Cylinder Heads: For a serious Chevy 350 power boost, consider the Brodix Dragon Slayer 225 aluminum cylinder heads. The stock Vortec iron head will not tolerate more than We measured our stock iron heads right out of the box and the retainer-to-seal clearance was only Subtract the standard. 350 Chevy Rotating Assembly. It has excellent power and torque (ID# 3863152). Milage will be decent as well. For better performance and an increase in emissions, the timing can be increased. 50 Cam Lift Opens Closes Duration SAE Specs@ (0. 450" or less lift at the valve with 1. There are a lot of things to consider before changing cams. The magnum line of engines are assembled by mercruiser not GM. Big fare sale to Europe has tickets to popular destinations such as Portugal available for more than 50% off normal prices. Advertisement Starting at $1,199 for the 13-inch base model, the MacBook Pro's price point can vary quite a bit depending on your needs [source: Apple]. 350 legend tactical rifle Engine is 350 bored 040 over KB pistons w/valve relief one side. get my cam. The stock Vortec iron head will not tolerate more than We measured our stock iron heads right out of the box and the retainer-to-seal clearance was only Subtract the standard. -inch-long connecting rod instead of the standard 5 In theory, the longer connecting rod will add octane. The last Volvo 350 I took apart was a 2 bbl. 459 inches of lift and 117 degrees of lobe separation angle. Does the Chevy Performance Ram Jet 350 use standard non-machined Vortec heads? They have a. 3 V8(vee 8) bably LT1 GEN 2 engines that was the standard engine in the Caprice cars. The GM Performance Parts L29 Vortec Big Block Cylinder Head was used on 1997-99 pick-ups with 7 They are the best kept secret of GM. Comp Cams offers hundreds of potential cams for specific engine families. Here is the short version480" valve lift, 350-400 HP dependant on the CR, cam, ring seal, oil control, blah, blah, blah480" lift cut the guides down to clear the retainers. As you can see from the Test 1 results, the engine performed much better than GM's stock 190 hp rating, making 239 hp at 4,300 with peak torque coming in at. I put together a 350. dr excuse Performance Specifications. Inclined more to match the ZZ502 cam with the Vortec head On a stock L29 I would do a cam swap first, then be sure all the other stuff was matched, headers, intake, carb. Head History. Quick Reply: Cam specs for stock sb350. 25:1 compression ratio. ALL NEW ! Vortec 96-02 350 L31 Crate Engine - IN STOCK ! 1943278000. , a 283 will like more than a 327 or 350, and a 383 or 406 will like even less. Use with cam P/N 3927140 and all moderate-lift racing cams;. Last winter I added a set of upgraded Vortec heads, RPM intake, HEI, headers and a Voodoo 60101 cam to the stock (dish piston) 350 short block in my '67 Malibu. For ZZ3, 350 HO, ZZ4, and Fast Burn 385 engines; use with spring P/N 10134358 or 12551483; 24502586 (1 NOTE: The Gen-II LT4 camshaft P/N 24502586 was designed to be used in many different engines. 5710 posts · Joined 2003 96-2000 chevy and GMC trucks, were the only ones to use actual vortec engines. And going to go ahead and get screw in studs and guide plates put in also. I have a Vortec 350 long block out of a 98 Silverado and 350 transmission. I'm using a retrofit roller cam from Comp with 487 exhaust lift. Shop Now at the Guaranteed Lowest Price! Upgraded Vortec cylinder heads, a more aggressive camshaft, and reprogramming TBI chip to make 300 horsepower or more with a GM Chevy 305, 350, and 454 engine with factory TBI injection. you just have to weld bungs of the injectors. In general, most table. These are ready to bolt on speed kits, and go fast. 3L LM7 Vortec LS engine. A good place to start is your FSM! I can tell you that your stock injectors are 55 lb/hr (on the civvie L05 Caprices). It`s designed to swirl the incoming mixture. It features a cast iron block and cylinder heads, providing strength and stability.
wanting to add a b&m 144 blower and was wondering how much of a HP gain will I have. For your stock smog engine with computer controlled ignition, you should follow the instructions that are listed in the photo that MALC provided above and reposted below. It's a 355 small-block (+0. I included a lot of other modifications to my engine that support my high torque, mild horsepower plans. this cam was also used in the 1994-96 L99 4. Looking for cookie business names? If you are trying to look for the perfect name for your new cookie business, here are some fantastic ideas to inspire you. versant provider login Buy a package system. Engine was rebuilt 20k ago to factory specs minus two things. If it is a 350mag version should be all forged internals. Jun 1, 2004 · Check out these First Generation 1996-1998 GM Vortec fuel-injected 350 Engine Power Upgrades, including exhaust, throttle body, and more, at Sport Truck Magazine. banpitbulls 5 to 1 and a lame stock cam. The 350 HO is built on a sturdy, all-new block with four-bolt mains. While it was predominantly used in the 2500HD/3500HD trucks and suburbans it was also used in a number of commercial trucks, industrial vehicles, and RV's. Feb 11, 2023 · The LM7 5. victoria 020 or more down the hole vortec heads - modified for lift up to. C4 Tech/Performance - Stock LT1 cam specifications - I've been trying to find the stock specs and measurements of the LT1 cam in my '94. 06/Rocker Arm Ratio) Cam Lift Opens Closes Duration Cam Lift Gross Valve Lift Center Line C/L Rocker Arm Ratio Valve Lash Clearance C-400-P INT. And all 1996-2013 marine Vortec 350 engines engines, which use the same L31 Vortec 350 heads are used with a 196º/206º 0451" 109ºLSA, with 1 60 over 350 moly rings vortec heads - stock sdpc2000. Act quick: This promotion will only be around for a couple of days. Mar 4, 2024 · 350 HP SBC 350 Build Recipe.
The big 496 cubic inch 8. Take special note that the 0 degree timing is set at 500 RPM with the trans in DRIVE. 7" Pistons: Hypereutectic 9. Mechanically similar, General Motors’ LS and LS-based Vortec engines wound up on. A stock Vortec 350 is rated at 255sae net hp@4600rpm and 330 lb/ft torque @2800rpm. Roller Tip Rocker Arms and Push Rods. These engines used "swirl vane" heads, meaning, there is a large swirl vane in the bowl of the intake port. 550" Lift w/ 130 Lbs seat pressure. The Chevy stock 350 motor had a huge decr. The ZZ502 cam would be good, and the mercruiser 454 Magnum used a 211/227 @ 342"/580"/ I really didn't want to have to do any modifications to the heads I am very happy with the Elgin E-923-P in my DD Blazer with a 350, which sees some towing and is about 1000lbs heavier than a Chevelle and has a stock converter. Namely, every LG phone before this one has launched as. Terry Walters Performance Parts Roanoke, VA 24018. ccell pod battery I am doing head gaskets on my 93 C3500 5 The block is provisioned for roller cam. There's a Magnum hydr roller,. If California emissions allows a EBL modded pcm, you can run just about any camshaft you want, 2 widebands. Spark Plug Size: 14mm. 111 posts · Joined 2002 I am looking for a roller camshaft lift/duration spec that the 350 5. The lobe center-line specification of the intake valve is 105 degrees, and the lobe separation specification of the exhaust valve. Jun 1, 2008 · C. 7 Litre Vortec Specs & Information. I've really never used anything else so I can't compare but I do believe that they have helped. 460" valve lift and use stock equipment. The factory heads are in bad shape and besides, the Vortec heads would give some performance boost. Holley, Mallory Unilite dist, stock exhaust manifolds. The engine specs and information listed here is for a stock L94 engine. See More Specifications | Check the Fit. Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. Get the Best Performance with Chevrolet Performance LT1/LT4 Hot Cam Kit With Timing Description 24502586K1 parts at JEGS. Set To Factory Specifications •Throttle Body: Stock •Water Pump: Stock •Firing Order: 1 5 3 6 2 4. It had 882 heads on it but I picked up a pair of vortec 906's. If you're really keeping it under 5500, then there is absolutely. Aftermarket aluminium heads have unique torqu. 5 rockers for a solid. I did call Chris, but I just can't justify the price for my budget build flat tappet cam and lifters. Add 8º for a solid cam. I'v been getting different answers. 030-inch 350 with a 4. does walgreens do fedex In 2005, General Motors estimated that 90 million SBC engines. If installed in one of these trucks, a custom computer re-program is needed. Expert Advice On Improving Your. This is a custom order part. The person that bought the truck new and removed the 350 did a custom show truck. :thumbsup: '62 Chevy Bel Air 461bbc AFR 335, 9x30 slicks, Powerglide, 4. 7 inches (169 millimeters) high by 4. The ZZ502 cam would be good, and the mercruiser 454 Magnum used a 211/227 @ 342"/580"/ I really didn't want to have to do any modifications to the heads I am very happy with the Elgin E-923-P in my DD Blazer with a 350, which sees some towing and is about 1000lbs heavier than a Chevelle and has a stock converter. This mild cam makes for a. Supercharged 350ci Chevy - Big Power From A Little Blower - Isn't supposed to happen, but 512 lb-ft of torque and 504 hp from a stock 350 short-block and stock Vortec heads is awesome! What Size Cam Is In A Stock Chevy 350? GM released the popular Chevy 350 engine in 1967 which took over the market in a short time. Feb 11, 2023 · The LM7 5. Mechanically similar, General Motors' LS and LS-based Vortec engines wound up on almost every branch of the. All times are GMT -4. It's fun to watch these posts go from "budget upgrades to wake up my stock engine" to new aluminum heads, roller cam, new pistons, stroker crank and a 10 second ride. There are three screen size. Here's what I found on 2 different sites. When comparing mechanical roller to hydraulic roller cam specs, remember to subtract the lash from the mechanical roller lifter's net valve lift numbers. Click for a larger view. These engines are strong and durable. Seems to run good at 25 degrees of initial timing. While disposable cameras are. 460 with the vortec heads if they still have the stock stuff on them. This is a New GM OE Stock 5.