What rpm crossing the traps in 4th? Iam running nittos 275/40 17's and run the car on the street mostly. When I go to the track I plan to slip the clutch a bit then roll on the gas and let the spray push the car down the track. I would like to shift @ 6200. Also enjoy the occasional highway race/run. So 3.73's or 3.42's....here are my mods

M6
RWTD diablo tunner (James "Master Tuner" Parker)
Fast Toys Ram Air
TR ported throttle body
TR 224/224 .563/.563 112lsa
FLP longtubes
Hooker catback
stock 10bolt

388rwhp
378rwtq

 

F-Body gear calculator

 

Thanks Mike!