Al, the owner doesn't know what the boost pressure was before, I'm going to advice for 3.0 Lbs. or less on Oregon pump swill at this altitude, 3500 Ft above sea level
The local 1/8 mile track, Madras, is around 2500 Ft above sea level, I don't know if he will ever run it there on a Friday street car night or not
He has another Roots blown street car also so maybe between the two we can swap pulleys to make more or less boost in this car
if not I have Littlefields phone number