More Quadrajet help please (long)
Thread Starter
Drifting
Joined: Jan 2002
Posts: 1,663
Likes: 139
From: Vail AZ
Race Director
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
Does the initial number include vacuum, or no?
If your idle timing is ~12 degrees and you've got some vacuum advance getting you to 30, that should be fine. What happens if you go less than 30 initial?
If your idle timing is ~12 degrees and you've got some vacuum advance getting you to 30, that should be fine. What happens if you go less than 30 initial?
Race Director
Joined: Mar 2017
Posts: 11,953
Likes: 4,510
From: Virginia
https://www.corvetteforum.com/forums...sary-help.html
Thread Starter
Drifting
Joined: Jan 2002
Posts: 1,663
Likes: 139
From: Vail AZ
30° is with vacuum disconnected. If I try any less the engine dies.
Old Pro Solo Guy
Joined: Dec 2017
Posts: 8,095
Likes: 4,449
From: Marlton NJ
That sure sounds like a vacuum leak to me. Too lean at idle, etc.
Try blocking off all the vacuum from the engine to the car.
Put them back one at a time.
Try blocking off all the vacuum from the engine to the car.
Put them back one at a time.
Last edited by leigh1322; Sep 23, 2020 at 12:55 PM.
