my gt 40 setup on my 89 makes like 275 on motor, cobra intake, cast iron gt40 heads, and a e303 cam, with 6lbs of boost with my vortech i make 340 to the wheels, i race a 03 cobra one night on the parkway, he def had exhaust, but idk what else, and i pulled a half a car on him... i think he was mostly stock though. was a nice race...now i also own a sonic blue 03 cobra...hehe