my 2cents.
search on this forum and you'll find several guys running well into the 11's with 3x2.
so yes, they'll do it with correct porting on intake and jetting (and little idle circuit work).
i'd look at it more from a $$$ perspective and what do you want it to look like.
i have a '64, and to me, a '64 should have a tripower. so i go to much effort and spend more to get this look.
here is a pic of my 472ci w/ '66 setup (that i am currently installing). while it doesn't look stock, it does look like it belongs in a '64 gto.
bottomline if you're not on a strict budget and you want a classic pontiac look.... TRIPOWER.
cheers
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