Just to follow up with you guys who helped me out after getting errors with the flash, it's running great. I chose the 91 tune because 93 can be difficult to find in the Great Plains. I do run 93 in it normally but Im hoping the 91 tune will give me an extra margin of safety at the expense of a few HP. It is a ball to drive with the great gobs of torque at low RPMs. But since it's my Winter car, I "Summerized" it last weekend with a trickle charger, gas stabilizer, and a cover. Now I'm driving my true car love, my Cadillac ATS-V. I'll still be reading the forums. Thanks again, guys!