Ported and Manifold Vacuum Advance
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Joined: Aug 2005
Posts: 1,972
From: Braceville, Ohio
Ported and Manifold Vacuum Advance
A good article from the Pontiac forum.
http://forums.maxperformanceinc.com/...d.php?t=835736
http://forums.maxperformanceinc.com/...d.php?t=835736
Out of Line, Everytime😉
Joined: Dec 2006
Posts: 10,133
From: Melville, Saskatchewan
I personally prefer manifold vacuum. I find most Olds V8 like very aggressive part throttle timing. Of course octane, compression, cam size and quench limit the amount you can add.
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