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If your going to stick a decent cam that maximizes the 350-383-406 sbc you need to have a long talk with the cam manufacturer of your choice about maximizeing and matching the rest of the components Premium master engine rebuild kit for 1967-79 Chevrolet 350ci (5.7L) small block V-8 engines except H/P engines.
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Includes a Thumpr Cam, Comp Valve Springs, Comp double roller timing set. 006 Lobe-center angle: 107 Intake centerline: 102 Valve lash: intake/exhaust - hydraulic Duration: 287 intake.172. CHEVROLET 350 MASTER ENGINE KIT - SPECIFY SIZES REQUIRED. Keep in mind your drive train must match the cams intended RPM BAND. Details RPM range: 2200-6100 Valve timing.
#Comp thumpr cam 350 software
CHANGE the software and computer that controls the EFI and reads the sensor imput. Your two choices are run a DECENT CAM designed to work with the stock computer AND maximize the engine potential.OR. the cam timing was designed more to get the (SOUND) tham maximize the engines potential power. His only request, 'I want it to have some cam sound and some pep' My plan is basically a stock 350 rebuild, dish pistons, GM. It goes in a custom 1967 C-10 Chevy pick up with all street equipment so we must be careful with the choice. The thumper cams get that rough idle by changing the valve timing events to maximize low rpm reversion pulses.the same low rpm reversion pulses that drive the stock EFI sensors nuts in a stock efi computer, are the cause of the rough/lope. A customer is requesting me to build a mild, 350 SBC for street cruising and car shows.
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Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve perfect choice for muscle cars and street rods.Best of all, Thumprs will not negatively impact power output or streetability. Applying a camshaft design originally created for sports car endurance racing, they incorporate early exhaust valve opening, long exhaust duration, and a generous amount of intake and exhaust overlap. The Mutha Thumpr NSR camshafts feature a grind profile that does not require new springs, keepers or retainers. COMP Cams CL12-600-4 Camshaft For 350 Chevy Best Top Pick Review. They are a direct fit for 2011-2014 5.0L Coyote powered Mustang GTs. Thumpr 227/241 Hydraulic Flat Cam and Lifter Kit for Chevrolet Small Block 262-400. That's because they give you the big cam sound you're looking for, without the drawbacks. Comp Cams Mutha Thumpr NSR camshafts make power from Comp Cams Mutha Thumpr NSR camshafts make power from 1,900-7,300 RPM. Thumpr Camshafts are the hottest cams to hit the streets in more than a decade.