New throttle body or new carb?

[basstrix]

Sorry to learn it's been so much trouble for you. Was hoping it was something simple like a cut o-ring.

 

[rvanamb]

Just my two cents but, I recently replaced my carb with the Summit 600 CFM. After initial setup runs great. Tried to rebuild the original 4300 autolite and nothing but issues. The summit one(made by Holley) is a great improvement. easy to set idle, easy to set float level. Just a really well designed carb all around. Worth the $420 to be out the garage and on the road.