Kyle's77cutlass
February 12, 2020
My #8's on the left and #7a's on the right.
Did a comparison between the 2, fair difference in the bowls.
If you are going to port and polish, not much difference in flow between any heads I think. #8's shave the heads to bring up compression and you are golden.
To me, the only gain from #7a's and under is the smaller chamber to raise compression.
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