Vacuum Advance Conversion

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1 Post By Rick Parker

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#10 (permalink)

12-07-2012, 10:48 AM

Randy Rosenberg Randy Rosenberg is offline

Senior Club Cobra Member

Join Date: Jul 1999

Location: SF Bay Area, CA

Cobra Make, Engine: SPF #1019

Posts: 1,657

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I'm no expert here, but there seems to be a lot of discussion on the internet (google: ported vacuum advance) about whether to use "ported" or "manifold" vacuum for ignition timing advance. From what I read briefly, you need to determine which is best for the tune of your specific engine. I suggest you do a bit more research to determine from where to access vacuum for your ignition. Also, I don't recall you saying "why" you are swapping out your mechanical-only distributor for one with vacuum advance.

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