Man that's going to be a sweet build!! Great work so far, that's going to be a fun little toy. Just be careful with slicks on the rear axle...you prob already know but that thing will be a grenade waiting to go off when it starts hooking up. I've been through a few on my toy, lol. I love the E-85 for high octane also, that's what mine is running on. Just watch your tuning different times of the season as if you buy it at the fuel pumps it changes actual alcohol percent with season changes of the year so some tuning for different times of the year will be required especially with forced induction. My toy runs on a carb though with nitrous so it might be a hair more sensitive to change that superchargers. Just make sure you get the tensioner set tight with the 5 rib belt so they don't spin on ya under boost. Can't wait to see how it turns out