I have a 1406 Edelbrock on a 355 SBC. About a week ago I noticed my idle adjustment changed and was idleing at a higher rpm rate than before. I also noticed the left side of the exhaust was not as smooth as the right side.
I had no issues with rpm above idle or past the transition point to higher rpm.
I went to check my idle mixture screws and when I turned the right idle screw inward the engine would stumble, reduce rpm and quit (normal).
However when I put the mixture screw back to where it was and start the engine I then turned the left mixture screw inward the engine would not quit. It would reduce and idle bad but not quit like the right side did.
I removed the card from the manifold, removed the mixture screws and shot cab cleaner and high air pressure into each side. Still same problem.
The carb spacer I am using has 4 holes and does isolate the right and left banks of the maniford.
Any ideas before I tear into the carb?
Larry
I had no issues with rpm above idle or past the transition point to higher rpm.
I went to check my idle mixture screws and when I turned the right idle screw inward the engine would stumble, reduce rpm and quit (normal).
However when I put the mixture screw back to where it was and start the engine I then turned the left mixture screw inward the engine would not quit. It would reduce and idle bad but not quit like the right side did.
I removed the card from the manifold, removed the mixture screws and shot cab cleaner and high air pressure into each side. Still same problem.
The carb spacer I am using has 4 holes and does isolate the right and left banks of the maniford.
Any ideas before I tear into the carb?
Larry