Ok...it is finally letting me tune the car with the updated file you guys sent me.. issue now is. I can NOT adjust for new gears in rear went from 342 to a 410 gear set. doesnt have option just tiresize option and that doesnt do anything speedo is still way off

I have been back and forth with customer service and getting real frustrated with this tuner and the hrs of getting it to work....

Car is a 2000 Trans Am with following done to it
1)Texas Speed Long Tube Headers and Off Road Pipe
2)SLP air intake
3)410 gears in rear

Automatic tranny with 350 ls1 ...