What if you left the sc on but also installed a large a/r turbo, could even be rear mount, that spools up late?
Either clutch or bypass the sc at higher rpm when the turbo has spooled. You get low end tq, and high end hp without sc parasitic loss?
kenne bell has just released a new kit for the ford gt with a new blower snout to allow for 2.5 pulley and reflash to get to 7oo hp. they also did alot of testing with different pulley sizes, etc. check it out at www.kennebell.net