ACN 91 octane: what #'s have you achieved

[sw20kosh]

Sort of a Poll to get a sense of what may or may not be possible with our pump gas.

What sort of engine performance levels have you achieve on this sub-par quality gasoline with your FI setups. Where is the octane/knock wall/ceiling in your particular setup.

[Cal3000]

I have a Vortech setup 9psi. I'm pushing 227whp on a mustang dyno, so that would probably equate to 240-250whp on a dynojet on stock fuel injectors. The car knocks the same way as it would stock; usually -1 to -2 degrees while cursing. No knock on WOT. I have 14k boosted miles on my car. 38k total.