Re: Headers or manifolds?
Ramhorn or early down swept cast iron manifolds are quieter, do not rust out, dump less heat into the engine compartment and you do not have to be screwing with the gaskets all the time. Chevy put alot of engineering into them so they flow pretty good, especially with 2.5" dual exhaust pipes and mufflers. You can get repop early corvette rams horns with 2.5" flange openings and larger inside ports, lots of the stock class racers use them.
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1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread
1964 Chevelle Malibu w/ 355-350TH (daily driver)
Helpful AD and TF Manual Site Old Car Manual Project
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