yes it is tuned, and i know u usually have to run higher octane gas, but i thought that was mostly cuz of the timing

thing is, i dont know what stock timng is. I think at a point i was running like 32* of timng....buddy said he lowered it 6* which would lower about 3* of KR. Timing i remember now is like 26* but i guess i need to look again during a WOT pull sometime.