I am in the process of changing to a 480hp 347 now. the SPF had a roush 427 with 550hp and after driving it the little 302 in the CAV seemed anemic. A good solid 400hp or so with a good carb should be ok for your use, webers look great but can be finicky.
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SPF Daytona coupe 055, Roush 427R
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