I replace my 10inch custom made converter because it went bad causing my trans to go out,when I got the trans rebuilt I order a b&m holeshot converter 3000stall and the car went slower in the 1/4 mile.I have a stock tpi could the converter be to big.the car was faster when I had the other converter in.mods list is trickflow heads,comp cam 220/230 dur 510/510 lift 114 lobe sep 24pound injectors,paxton superchrger,hooker headers,stock ecm and eprom.need help

 

too big too small whatever it is it's not working for your engine combo. if you had a custom converter it was made for what you have. yank and vigalante are the 2 big names for thirdgens.