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Originally Posted by Fast6.3
Sweet build man i would have worked on the heads rather than the fast i think it would be money better spent as the ls3 manifolds flow pretty well and the fast is pricey but it looks killer. Hope you make your goals With the lift on your cam i would recommend aftermarket rocker as it has been mentioned that the stockers max out at 625 lift the geometry is wrong with lifts higher than that at a minimum i would do the trunnion upgrade just my thoughts
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We will be doing heads on it within a few months then we will upgrade. Otherwise i would have recommended it now.
Quote:
Originally Posted by 429
TB and 2.5" exhaust going to hold it back a few horses. I predict 485rwhp, considering the big headers, fast, and e85. Few extra ponies in the crank pulley too if you swapped to an underdrive
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I have never seen a throttle body add hp on a dyno so i wasn't going to waste his money on one. 2.5 wont hold this car back at all, hell i even run 2.5 on my 714 whp cobra.