i own a 90 gtu w/ RB Dual Exhauts system n custom CAI. i recently raced my friend who has a ford probe gt w/ a borla exhuast system. my car pulls on him on take off n is still pulling strong until i reach about 6500rpm in 3rd gear, then he catches up n blows me away. it feels like my car is losing power at the top end of 3rd gear, is it my fuel pressure or is it normal?

 

Make sure your VDI and 6-port valves are working properly. Search around, there's a lot of info about them.

 

i got them wired open

 

whats up.....i've expierienced the same prob as u.....as a matter of fact with the same car (ford probe GT)

I can smoke any one of my friends down the quater and around the curves but when it comes to the highway....i got nothin

i think its just a NA thing.

try a header. see what that does. or go street port....worth every penny.

 

well i got racing beat headers, its like u said, on the i aint got nothing at the top especially after 90mph. but im gonna have my motor soon.