I run a pretty conservative tune with 17lbs of boost on 93 octane. I would like to change pulley a few times a year and run 20lbs of boost. First off what do you think of torco and second my octane should be what? I run 17 degrees of timing on the 17lbs tune and may just swap pulley add torco and throw it on the dyno to data log and get air fuel from both sides. Has anyone had issues with torco?