Rebuilt my Rochester carb in the 216 a few weeks ago and wasn't real pleased with the results. Engine backfires when I accelerate from 1st to 2nd, coughs and sputters then lines out. Have to fiddle with the choke too to keep it running smooth. How important is the adjustment of the screw on the side of the throttle body? I think it adjusts the air/fuel mixture. I backed it out the 1 1/2 turns per the instructions in the kit. Would that help smooth out the rough running? I thought about the vacuum advance on the distributor not working properly too making it backfire when I give it the gas. Possible? It wasn't a problem before.

Thanks for any comments.


Chuck
1950 Chevy 1/2 ton (all original)
1951 Chevy 1/2 ton (future streetrod)
1941 Chevy coupe
1938 Chevy coupe streetrod