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Old 09-21-2016, 07:19 PM   #18
davepl
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Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
Re: HEI ignition secrets

Quote:
Originally Posted by tdangle View Post
Vacuum advance for your dist will only come into play when the engine is running.
I've never looked at the gauge to be honest, but if a motor can pull 21" at an idle of 500, gotta think it can pull a few inches of advance while cranking at 300rpm (or whatever they crank at).

I don't know if it's a material amount of advance or not, I'm kind of picking at nits here, but figured I'd mention it...
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