Thread: How does the GTP stack up to cars nowadays?

Originally Posted by addzradd

Yeah, with about 200#s of useless crap removed from the car, a little porting and a good tune.

Porting heads is quite the part you keep leaving out...even in that thread.

These heads are awful from the factory and opening them up does wonders on the flow side...like 15-20% increase?

Yeah...expect a "common" 3.4, header/rocker car with a solid tune to crack off high 13's...maybe mid 13's with a good driver.