Thread: 1979 F350 4x4
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Old 01-08-2019, 06:18 PM   #14
Teacher John
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Join Date: Dec 2018
Location: Bastrop County, TX
Posts: 73
Default Re: 1979 F350 4x4

Quote:
Originally Posted by scicala View Post
A vacuum advance does not rob you of any power. When I worked in the 80's at Roush, we were dyno'ing some 460 Ford engines and more than one person noticed the exhaust temps were higher than other engines. The vacuum advance will allow more spark advance when cruising (light to moderate loads) which in turn lowers exhaust temps considerably.


Sal
Well, it turns out the vacuum advance is connected. What should the timing be set at in your opinion?
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