Surging

moparmucelli said

Ok the carb I bought it from rock auto about three years ago and maybe drivin the car maybe 300 miles and it's always had that problem and people are telling me I'm starving the 360 you need to go to a 4 barrel and I'm like hmmmmm but your telling me it could be a dirty carb or timing I'd rather try your idea and yea it's more like bucking when your driving it

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Forget you ever met those people. They are either; ignorant, stupid, or or just willfully misinforming you.
It could be as simple as contaminants in the fuel, especially water. Small amounts of water will for sure cause bucking, as will mild detonation, and failing intake valves. The fellows that came before me are steering you in the right directions.They will help you get to the bottom of it.
Certain 2bbls have been tuned to do all kinds of things from making a good amount of power, to making excellent fuel mileage, and bucking or surging was never a part of the program. These symptoms are telling you that something is wrong in the tune, and absolutely not, that you need a 4bbl or bigger carb; that is just blatantly wrong.
You came to the right place.