Hmmm.. Its an edelbrock , carter copy i think. 750cfm. I had a shop set the fuel mixture with a sensor and it had extreme hesitation, so obviously something wasnt right. I turned the screws out some to richen to the mixture and it seemed to get better but i'm having a hard time setting it to where i can withstand the shaking of a rough idle and alos eliminate hesitation.

I was curious if something else may have been causing it, the timing is set to 9 which is correct according to the books i've read.