Advance adjustment(s)

srixon4406 said

Have you tired run vacuum off the manifold I was just researching this for my turbo build here's a good link/debut with real world experience
http://www.hotrodders.com/forum/vacuum-advance-hooked-up-directly-manifold-bad-47495-4.html

Aaron

Click to expand...

Yes. My Holley has access to both....ported and manifold. The engine will not 'settle' to idle with either. Vacuum advance is not causing the problem.

At idle speeds with the HE3844 there isn't much in the way of vacuum, period. It's not as bad as the 292 PurpleShaft I used to run. That gave me pressure at idle. Great for vacuum boosted brakes!!! (kidding)

I'm sure there is NO 'flat spot' in the YH Mallory distributor with the flimsy springs.