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My recommendation would be to go with a set of AFR 165 heads. They flow the same cubic ft as the Trick Flows and they do it with smaller valves = higher velocity and more power. They will bolt right on to the stock engine and go with the E cam or with the Trick Flow stage II cam. This combo along with an EDELBROCK performer rpm intake on a carbureted car will result in something like 350 - 365 hp. AFR will give you tech tips on springs etc. Also talk to Keith Craft - they can recommend a package - and they sell the AFR's. I jut put a KC 331 stroker in my cobra. Had a stock 302 in a previous cobra and went the TF route - because someone inadvertently said the AFR would not fit - their mistake and I went with the 'other' head. Good luck. Rickd
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