this forum has been a tremendous help to me, everytime ive posted a question it was responded to with overwhelming respone. i need to ask for everyones help again. what is the best way to tune for air fuel ratio using a dyno jet wideband and dyno without the auto ve feature. And will every GM vehicle be tune in basically the same manner. I have been tuning with SCT software for the last 5 years and i am new to the EFI live. Its just alittle bit different than what im used to.