you can modify the truck intake or just use the bottom and get a boxed upper that would be great for high rpm hp.
the 302 truck lower is basically the holley lower.
I've modified a couply of 351 into boxed uppers by cutting up the stock upper from a trock manifold
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89 with 331 t3'/t4 hybrids. upr Suspention worked out finnaly . 9.89 144 mph .
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