Ported vacuum? Manifold vacuum? Which should you use, and should you even use vacuum advance at all? Well break down the hows and whys of this hot-rodding mystery.
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......big block, 4 speed, bench seat, it doesn't get much better
Factory setting for my 68 is manifold vacuum. I tried it ported with more initial timing but it does run better as it is supposed to be with manifold vacuum.
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'68 Parisienne 2+2 Convertible Matador Red (Resale Red but not for sale).
