Quote:
Originally Posted by 3fastgtos
Are you apposed to the large RA manifolds? I’m gonna try a pair on the C10 that I’m building. Years ago a local guy was running an all steel ‘69 GTO with an iron headed 455. Ran low 12s at 3000ft. He said he took off the RA manifolds and put on 1 3/4” headers and seen no improvement at all.
SD
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Not apposed at all... I actually was looking at them on Butlers site.