Well i have my 94 lt1 swap i put it into a 88 monte carlos ss. , i took it for a drive the other day and it seems that when i punch it it stumbles a bit, seems to be right around 25 -30 mph if i push it to much to fast it stumbles and pops but if i ease it slowly ( no fun lol) it dosent do it, and once i push past the stumbeling spot i can punch it as much as i wasnt and it goes great. Even if i have it in gear and tap the gas a few times like flutering it it does the samething. any ideas?

 

Anyone have any ideas?