On my wife's car which is 10.5:1 small block, we just moved from 750 pump gas to 950HP Alcohol and it picked the car up just a little over 3 tenths 11.20s to 10.90s but that is still with 10.5:1 compression.

Alcohol make more improvements in low compression motors than ones that are 13:1, for one because your already running high octane fuel like 110.