rich carbs make a fat car

[mhblue67]

In high school I switched out my two barrel carb on my 1967 289 and put in a holley 4 barrel. I do regret that. the 4 barrel runs too rich. I think it is time to rebuild the carb but I am having trouble identifying it. The numbers I grabbed from the front and top don't match anything at holley.com. any tips, from anyone. Someone told me to get more restrictive jets for it. Is that good advice?

[Larry03gt]

Best bet is to call the Holly tech line and give the numbers on the carb and they will cross ref the model # to get you a rebuild kit for it. As far a leaning it out going to smaller jets will help a little. But the best way is if the carb has the vacuum sec. they sell stronger springs to open the sec. That would help alot more. If you have a manual sec then that's too much carb for that motor.

[5.psycho]

did you tune the carb? the air/fuel screws in the front of it?