ok i have my cam selection down to to cams... its either tsp 233/239 .595/603 or ms4 please give me ur feed backs and also going with race ported heads i already have trueduels/lid/free mods/my car is a a4

 

with those heads you might have to flycut with the MS4, the MS4 will make some sick power but you have to make sure you get a really good tune if not you will not like the cam from all the surging, the other cam will make good power too just a little lower in the power band, the other thing I don't see LT's in your mods, make sure you get LT's before you get the MS4 it needs to breathe.

 

sorry bro i do have long tubes but i think im goin with the 233/239 cam..