Man, your review is spot on from my exact thoughts. It was funny reading this because I just wrote down my thoughts yesterday in my build journal and it's very much the same lol. Also read your meth thread because I decided to do this as well.
Hill's Garage GTM Stage 2 Supercharger Direct Port Methanol Dyno
What type of exhaust are you running from the headers back? I'm trying to figure out if there is a trend with the guys making 500+whp on superchargers and their cars with the type of exhaust they are running. I'm running long tubes (think I'm one of maybe a couple running LTH's and SC's?), MD Y pipe (resonator currently) and Tanabe exhaust.