Mark, Your advice is appreciated and subconsciously is probably was solicited! I run 94 octane from Sunoco and a few times I did set the HKS to about 75% and she did hit 15-17psi only the car was too fast. The tires broke loose at 35+mph and the rear end slid like I was driving in the snow. While I liked it---I didn't like the idea she can "get away" from me so easily! I was also testing to see if it would trigger the ECU to go into safety boost mode, luckily it did not. I am looking into your suggestion---the AFC. I may add it to my Racelogic TracLoc. Thanks for your input & help.