What Are You Doing To/With Your Car Today?

Kind of funny but I just used a fast drill wood drill bit as an end milling tool to get the job done, worked for me. Clamp her all real tight to the drill press.

You can take your 2 bbl carb off, and put a new kit in it too . . Or >

There is a real simple fix, there are 2 low speed idle screws at the base of your 2 bbl carb. Take them out, spray Carb Cleaner in the 2 holes, then blow them out with compressed air. Can even take a small parts tag wire and fish in there too help clean out too. Then polish up the ends of the 2 screw in needles with some scotch brite pads.

Screw the 2 low speed idle mixture screws back in to the bottom, then back them out 1 1/2 turns and adjust either way till your engine smooths out at idle. Might have to adjust your idle stop screw over on the linkage side of the carb too.

Sounds to me that those 2 low speed idle screw circuits are plugged with gum and is creating a lean fuel air mixture at idle so it pops back up through the carb. Clean those out, it usually makes a huge difference for very very little effort. Helps richen up the idle mixture and quits the carb pop backs.

Good Luck with your car . . .