i've been having power and acceleration problems for some time now and can't figure it out i've tried pretty much everything now short of a new motor, but was hoping it was the tire size throwing everything outta whack. I was wondering which one is better to go with, Hypertec, superchip, diablo, etc. Any help is greatly appreciated about the programmer or the power problem. It wants to go off the line but very quickly falls on its face but won't stall, it also does this when turning a corner and trying to accelerate, only other thing is if the new fuel pump is a dud (but reads full pressure at idle), map, or cats, everything else to do with such a problem has either been changed or checked out.
