Ditch the carb and get a 4-barrel. My only regret is that I didn't do it sooner.

Yes, the intake manifold will kill your wallet. BUT, a simple R-1850 600 Holley will make the car or truck feel like you just gained 50 cubic inches. Plus the 4-barrel is tunable. The stock 2-barrel is tunable IF you can find the parts.

IF you decide to stick with the stocker carb take the rebuilt carb apart and clean it out well. Then look at the accelerator pump.

You can rebuild your own carb yourself, those carbs are very simple.

Good Luck!

R.