Yeah with e85 I could hit 35psi or better but it's no where close and even getting 94 octane is a stretch. I'm almost better hitting the airport for 100LL or the racetrack for 110
. 91 is nasty. Had to fill up on it to get home and I'm getting more knock than ever.
Once I get it clear and set with 94 octane I should be squared. Still going to be tricky getting to 30psi.