Quote:
Originally Posted by Frank Castros
Carter AVS is also spread bore.
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A Carter AVS is not a spread bore, I have run this combo in my 68 Cuda since 1978. For a thermoquad to work without a spacer you would have to machine this manifold. Also my car will still fit in G with this combo. Before you worry to much about this combo, which there aren't that many out there, you might want to take a look at the 91 Corvette which holds the G/SA record at 10.54 at 124 or the 73 Pontiac TA - 455 at 306 hp. If you think all this aluminum stuff helps so much (other than weight) then why is the 70 Duster with aluminum heads 2 hp less than with cast iron heads? The AVS 340 combo & the 383 only take a 1 hp hit with aluminum heads & be prepared to spend big $$$$ to make them legal. Wish I could use a Quick fuel carb or a 4 speed auto trans. Didn't powerglide combo's got a 3 speed, why can't I run a 4 speed auto? That would help way more than a manifold. Can someone tell me, what is stock about stock eliminator these days. Just sayin.