Could anyone give me input as to any difference performance wise between a JDM SR20DE engine with 9.5:1 vs the 10:1 compression particularly for road racing or any other? I am aware of the HP for each (150 vs 140) but is it that big of a difference on the track? Any input is welcome to help me decide.
BTW, I would be "bending" the rules to go to a 10:1 motor for the class I am in.

Thanks
Charlie B.