The car back in 04 would 60 ft 1.52 with a motor at the same power level.I have some work to do for sure.The headers are the 1-5/8 to 1-3/4 step TTI pipes,This motor is making the same amount of power(same mph)as my old motor but the old motor was a 12 to 1 with a solid roller in it.The old motor had to struggle to breath through 1-5/8 headers.These new headers are a big reason this motor works well.Now its time in the winter to do some suspension and tires and make some 10.60 runs in the spring.