i was changing my 62 jet that came with me bbr pipe back to me stock 58 jet and now when i give it gas quick it tries to die on me. if i get it to high rpms it's ok then, but to make a quick start from idle it tries to die on me. before i changed the jet it was fine. i know that it isn't the jet though because the jet only has to do with the higher rpms. i even put the 62 back in and it still does it anyway. ive messed with the air screw and not got any difference. anyone got an idea what i might have messed up? i had to screw something up in the carb but i have looked it over and over and can't figure it out. please help!!!!!!!!