My setup is whats in my signature. i just finished the swap havnt got it tuned yet, just hoping you guys can help me get an idea b4 tuning

 

To be perfectly honest, it will depend on how well it's tuned more than anything.

Personally, I wouldn't trust it on 91 octane. Maybe 93, again depending on the tune.

 

Yep.. just as kendall stated..

it's going to be all in your tuner and your a/f..

What's your highest octane rating for premium in your area?

I ran 12:5:1 CR On a built gsr on 93 octane and never had a problem.. that was with RC 310cc injectors, stock fuel pump.. jun 3 cams, etc.

 

no upgrade fuel pump?