So after replacing my lower intake manifold and IMRC cable I did notice a crisper punch at higher rpms but something still isnt right, and I just cant nail it on the head. The only thing I can think of is that they didnt put a svt tranny in my car when ford replaced my tranny?? would that make my car slower just puttin in a regular MTX 75 or are they the same gearing "surely not". Well all this depression came to me at Houston raceway park where I was stoked that I had just replaced my LIM and IMRC and it would run so much better, 16.3 wtf I ran 15.4 before the tranny and everything else, oh and I also had my cats replaced..... riddle me this what the hell is goin on... what else could rob me of this power.. precats.....tranny... im stumped????