What are the best ways to kill KR? The highest octane fule I can get is 91 with out getting into race fule. So with that said I was thinking a water meth kit, and some 1.9 rockers. Are these good mods for a turbo set up and good power.

I had a 400whp Ic gen 5 set up before the turbo and did both these mods and found little diff. But the turbo it a diff power adder.

Thanx guys

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CT 61mm turbo, 3" DP, DHP tuners, SD spoiler, SSC springs, 17" mustang wheels, and much more