RJ, you may be right. The port volume may be restrictive enough that the bigger valve makes no difference. I understand that the area closest to the valve is the most important, and as you move back upstream, it has less effect. I certainly have no first-hand experience doing any port work. Perhaps Paulie, who has been posting on this thread, might have some ideas.
RJ, do you run a late model GTO? If so, how fast is it, and what modifications have you made to it?
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