1978 quadrajet idle
Racer
Joined: Jan 2005
Posts: 434
Likes: 47
From: Lake in the Hills IL
Safety Car
Joined: Jun 2004
Posts: 4,372
Likes: 223
From: Beecher Illinois
The idle adjustment screw is the one the cable controlled linkage rests against.
Should be right there on the side. Watch as you manually operate the carb linkage and you should see it.
Don't mess with the mixture screws.
Should be right there on the side. Watch as you manually operate the carb linkage and you should see it.
Don't mess with the mixture screws.
Racer
Joined: Jan 2005
Posts: 434
Likes: 47
From: Lake in the Hills IL
Well that explains why once I messed with my front 2 screws that my idle became normal.
Bubba jacked with all kinds of things there, and the idle was one of those. I think because he chopped off many of the vacuum hoses that he had to mess with the front 2 screws to adjust or make it not die, as once I fixed those vacuum lines then my idle was really jacked worse than before. Now I'm all good though, and it idles right on the factory #s.
Bubba jacked with all kinds of things there, and the idle was one of those. I think because he chopped off many of the vacuum hoses that he had to mess with the front 2 screws to adjust or make it not die, as once I fixed those vacuum lines then my idle was really jacked worse than before. Now I'm all good though, and it idles right on the factory #s.
