Gonna be about 67 degree out.

My truck is a 03 silverado ss
k&n cai
factory exhaust except after the cats just has two bullet magnaflow resanators instead of muffler.
and suposedly tune?

What can I expect to run in the 1/8th mile.

Should I take the tailgate off.

there is this 96 bone stock gt that will def be there and wants to race...it's all in good fun. Can I at least expect to run in the 9's