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When looking at Cams, you know then that your rasing the duration and lift which means your going to need stronger or new Springs. Doing half the heads would be a waste while your there, so valves would need to be looked at, and consider guides, retainers and next you got 5 angle heads at a heavy price. This all works best for higher RPM levels and increasing powerband. Real down pipes, test pipes, a GOOD exhaust manifold porting like SGP's, that polishes as well, Aluminum flywheel, ported exhaust heads will go farther on Sport 600's for the money. The Sport 600 is designed for engines capable of up to 600 HP. They produce a significant air flow increase at moderate to high boost levels due to their low back-pressure design, which makes the 100hp more than stock turbo's on pump gas ( stock on race ), so not massive in comparison. Significant air flow increase from 4200 RPM, which give you 3000rpm's to play with. - Manual transmission cars require stock .63 A/R Ex. Automatic transmission cars require stock .54 A/R.
 STAGE V++++ Going to XV+ and beyond :) Yellow Z STAGE II Going to XI+ |
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