Quoted From moparfan:
to set the choke you fully warm the engine pull the air filter assembly off and see if it is fully open. if not then reset it by loosening the 3 screws and turn till it is fully open. you cannot just “guess” where it should be. the choke will not change just because you hit the brake or turn a corner. it would more then likely be in the float ajustment. a model number of the carb would be helpfull here.
Right, ‘cuz the float level will just change when you hit a bump. Dude, he said he rebuilt the carb. There are usually specs on the gap with the choke closed when you rebuild it. I didn’t say to guess. And why would the float level be an issue when you are having problems with stumbling when you get off the gas? Move along.
Anyway, I found a Holley link that goes over adjustments for a Holley 4 barrel. The 4150s and 4160s are really similar, and the most common. One has an extra metering block, and 4 idle screws instead of two. I forget which is which.
http://www.holley.com/data/Products/Tec … 7948-5.pdf
Good luck.