Join Date: Feb 2002
Location: Pearl, Mississippi
OPPS! Sorry DjD! My Problem was a pretty common one, either not enough fuel was comming out of the pump nozzle, or there was a blockage in my line somewhere. There was plenty of fuel comming from the pump nozzle, and the line was free of debris. I had to adjust the pump and make sure that there was .015 clearance between the pump arm and lever. Then look at the exhaust to see if there was black smoke out the exhaust. If I had a stumble and no black smoke out the tailpipe, I needed to increase the shooter size. If it stumbled and I was are getting black smoke from the tailpipe then I had to decrease the shooter size.
Step 2 was to make sure the carb didnt bog when I accelerate. I had to install a heavier spring, and move the spring back a little bit so that it came in a bit later.
So I a way, you both were right, eventually I had to do a little of both to make the carb hit just the way I wanted. The weird thing is the stumble would have been caused either way, by opening too soon, or from opening too late. Holley's web site had a few more troubleshooting notes that helps carb rookies like me understand EXACTLY what to do. If either one of you were trying to dial my carb in, it would have taken 2 minutes to figure out.
84 Modified F-body
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