Hey, when I am racing around on the highway and stuff I feel a huge power boost at 4-4.5k rpm....Could this be because of dirty primarys? I have the stock ones for primary and secondary, so should I attempt to clean them? Any help would be great.

 

Injector cleaning can't hurt.
A Dyno session with a wideband will tell if to F-con is tuned OK, or if the primaries are hitting max.

 

I think thats your RPM band my man... You should feel MY car when it hits 5k!!!

BUT.. listen to sureshot... cleaning the injectors wont hurt... my primaries were onyl flowing 60% of their capacity before I sent 'em to marren to get cleaned.... not good