I have always preferred the roots,when I was in my early teens all the really fast cars had injected, crossrammed or roots HEMI power. So that was my goal, no real overdrive on pump gas and drive to the car shows and cruise nights. Go to the track and overdrive , add octane as needed and go real fast. I found that IAT's over 160* slowed me down and was a wall that had to be dealt with. Lowering the intake temps should work wonders! Can't just add intercoolers and ICE!