CorvetteForum - Chevrolet Corvette Forum Discussion - Poll: Early C3, Ported or Manifold Vacuum off quad carb?

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- - Poll: Early C3, Ported or Manifold Vacuum off quad carb? (https://www.corvetteforum.com/forums/c3-general/4191595-poll-early-c3-ported-or-manifold-vacuum-off-quad-carb.html)

BarretHC1

09-23-2018 11:32 PM

Poll: Early C3, Ported or Manifold Vacuum off quad carb?

Just taking a poll. Are you running Ported or Manifold vac to vacuum advance on early C3 quad carb? Is it factory that way?

speedreed8

09-24-2018 12:23 AM

Manifold

Bikespace

09-24-2018 07:32 AM

I don't have an early C3, but if I did, I'd do what I did for my lates: HEI distributor, manifold vacuum, vac advance limited, etc per Lars' guide. Are you looking for originality, or a car you enjoy driving? Not that those can't be the same thing...

BarretHC1

09-25-2018 08:09 PM

Ok, Awesome, I think I'm going to change mine back to manifold. I switch to ported because I was only getting 10" of vac out of the manifold with the carter 4851s carb.

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