I dont know what Im going to put down, I do know that I just want it to be safe. I will tune it for whatever it could go to and then turn down the pressure a few pounds. I dont think much more than 550 which would be perfect with the 35r. On race gas will be a diffrent story, Ill probley get a s-load more because of the compression. I will just have to wait and see.
86' 930/GT-40R Sold
94' Rustang GT daily