“Max effort daily driver” 318 build vs “Budget” 400 swap

RustyRatRod said
I agree 100%. With only as mild of a big block as you really "need" for a street car, the HP manifolds would work fine. Too many people over think things. These cars are very light and even a blueprinted HP 383 would make an A body very quick on the street.
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Most would be satisfied around 10 lbs per hp give or take a lb or two, with good power idle-5500 rpm, peak around 5000 rpm which would be about 0.9-1:1 hp:cid, easy obtainable goal, 360-400 hp with a mild 400, 285-320 for a 318, mild with the right head.