General Category > Quadrajet Carb Talk and Tips

7044223 1974 Monte Carlo 454

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77cruiser:
What was the initial timing on those? I suspect quite retarded & they need that much bypass.

Frank400:
Jim, that is the only thing I can think of...

73ss:
That bypass is big. I have a un-molested 7043200, from a '73 454, LS4 and the bypass measures .137, which is the biggest I have seen.

Looking at the baseplate, I don't see how it could go bigger without breaking through the bottom of the baseplate, the way they are drilled at an angle. Initial timing was 12 on a 73 passenger car with 454. My car still has the emissions decal.

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