If you really wanna get things going...run your alcohol mix up to around 70%. You can get straight methanol in air line antifreeze, and then distill water.

Running a high amount of water mix on these engines kills KR, but it also slows the combustion. Which in turn makes your O2's look pig ass rich. Once you start running a higher concentration of meth, you won't be able to turn it up enough....she'll really scream then.