Headers and exhaust sizing
 

I've got 88gt with speed density. I've got stock ported heads and intake, stock cam,1.7 rr, 1 1/2 mac equal lenght headers and 2 1/4 off road exhaust. Do you think my exhaust is to small? A guy at the track told me that it was perfect for my combo because i cannot do any other airflow mods (speed density). Actualy i'm running 13.05 at 104 mph and i'm sure that i could be faster with 3.73 gear and more practice with slick.

I think that you have the perfect set up for your mods as far as exhaust goes.

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87 GT, Cobra R's,GT-40 heads,Crane 2031,1.7's, Edelbrock intake, long tubes,BBK cold air, Mass air,pulleys,Pro 5.0, King Cobra,Lakewood Lift Bars,50/50's,subframes, 4.10's.
Best time 12.759
Best MPH 106.79
Best 60' 1.695

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