Stangnsnow2

i have a few mods to my stang and i still cant find where this hesitation is coming from. im thinking of getting a new / bigger mass air meter now. what do you think, maybe fix my problem. i know the problem isnt fuel i have a holley regulator and a 225lph pump. i also know it isnt spark either because i just put new plugs in, msd wires, msd coil and a msd distributor and i still have this hesitation.....any other ideas or recomendations id apreciate thanks!

zebo87

you just changed the distributor are you sure you have it timed right.