Hello guys I own a 4.8 2002 sierra and I planing in entering it in the drag in a couple of months.I'm hopping to get it to 9-10 seconds.
Current Mods:Summit Racing air intake kit.
Dual custom exhaust system with a flowmaster cat.
Custom long tube headers.
Transgo shift kit for 4L60E.part # 26-4L60E-HD2 .
Corvette servos.
Custom Basic tune.

I'm planing to change the engine into an 5.7 LS1 soon.

Any other suggestion would be much appreciated.

Thank you