i am running a 496 bbc 8 to 1 pistons unmodified 781 oval port heads and a 6-71 little field blower overdriven with a 52 on bottom and a 51 on top.....i am making 10 lbs of boost at approx. 5000 rpm!!!!!!!!!that doesnt seem right to me,i think that is too much...i was told its my heads not letting me flow enough...what do you guys think??????? p.s. my gauge is a brand new autometer just for info