Stay at 11.3:1-11.8:1 for a build on non forged internals driven daily.
You can build a motor with a c/r of 12.5:1 on pump gas & drive it every day on 93 oct if its tuned, but I don't recommend it.
Good luck.
__________________
Authorized Dealer & Tuner for: Hondata, eCtune, Neptune, AEM, Crome, Precision Turbo, Omni Power, Walbro, Innovate & more. Dyno Tuning Services, Ecu Chipping, Chipped Ecus, Conversion Harnesses, Widebands, Fuel Injectors, Fuel Pumps, Map Sensors & more.
For more information visit http://www.Phearable.net or call 1-888-236-9831