![]() I have also heard consistently good things about the K1102, but haven't used one - the specs are certainly in the ballpark. 450 lift range with 4x4 advance ground in is going to be an improvement. Note the power peaks for the 350/290 - RPM and RPM.this is a great cam for a street muscle car, but doesn't match the operating range of a truck where the focus is on low- and mid- range RPM torqueĪnything in the. Our RPM Air-Gap manifolds have a unique air-gap design for a cooler, denser intake. The dual-plane, 180° design of the Performer RPM intake works with an Edelbrock carburetor for great throttle response and power up to 6500 rpm. I agree that for high-performance use the spring should be carefully matched to the the cam by the mfgr's specs. The Performer RPM power package has a broad operating range for streetable performance and high-end horsepower. Although we need to check, as long as we're generally within these specs for lift we're going to be OK for street use < 5500 RPM redline. I believe the cam in the 350/260 is the venerable ".390" cam. 450/.460 lift, 222/222 duration and 114 lobe centerline. We take one of ATKs Stock Replacement Remanufactured Vortec 350CI Engines and dress it out to be retrofitted for a Muscle car swap. The 350/290 does have a more agressive cam (P/N 3896962) with. ![]()
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