My tuner is not the biggest fan of E85 due to availability and quality. He is pushing me toward a meth kit. I am in midwest so E85 is reasonably easy to find. Goal is an additional 100 whp. Currently gen IIr VMP, supporting mods, 1050s and BAP. Would add 10 or 15% lower (2.4 upper) and either E85 or meth. Which should I do? Thanks