The Ford Barn - View Single Post - Manifold vacuum at idle... vs without...interesting observations

Bored&Stroked · 01-18-2021, 11:42 AM

You may need an adjustable vacuum advance cannister - they used to produce them, but I have not tried to buy one for awhile. Your total advance (all in) should be about 24 degrees (under load).

I'm not an expert in how much vacuum advance you should have to support partial throttle "cruise" conditions - who has some numbers here?

01-18-2021, 11:42 AM	#10
Bored&Stroked Senior Member Join Date: Jan 2011 Location: Central Ohio Posts: 5,067	Re: Manifold vacuum at idle... vs without...interesting observations You may need an adjustable vacuum advance cannister - they used to produce them, but I have not tried to buy one for awhile. Your total advance (all in) should be about 24 degrees (under load). I'm not an expert in how much vacuum advance you should have to support partial throttle "cruise" conditions - who has some numbers here?