My personal experience says that the motor is a bit over cammed from the factory and that your not going to see much from an aftermarket "performance" cam.

I went with a less aggressive factory roller cam and found that it was a nice improvement.

IMHO the best cam is the factory roller cam from AU. If your intent on more HP at the same RPM without a turbo then the UA EFI and cam is a good conversion.

The best conversion using parts from the US is to use the Starion turbo setup.

Kevin

87 Turbo Intercooled Raider, roller cam, torsen rear diff, LSD front diff, lockup auto with modified converter, V6 brakes, low transfer case gears...