I've been running 50/50 blends of pump 93 and E85 on my car for the past 2 months or so straight, and I run map 7 on my jb4 which is the lightweight race map at 16.5 psi without any issues. I can't go back to straight pump 93 and map 2 any longer, but I just may right now with this cold weather lurking. Traction is nonexistent in 2nd gear with stock brand new RFT's...
