see if i can get some good answers here. trying to set the blower back 2 inches on a hemi and wondering how much this should pick the hp up. obviously egts will be different now, which type blower would perform better by doing this, a 14-71 std or delta hi helix ? any idea if the jetting per cyl will be different? not asking for a tune up, but trying to get an idea of what will change and how much the tune up will be off by. alchohol fuel injected of course.adding also, since i dont see the psi screws setback, does that mean because of their weird discharge holes that they dont need it, or is their some kind of rule on this? due to the amound of money required to go 8-12 inch setback is why we are considering the 2 inch.thanks ita!