When I used a Paxton on my 250, I was able to get to 10 PSi, normally 8-9 PSi on average.
That was with there "RACE" compressor wheel.
Maybe if my 250 was all stock, I would have been able to get to 15 PSI?
That is what JR Granatelli had told me in person I would be able to get to with no problem.
He delivered it personally to a place that installed there Paxton superchargers.
The newer gear driven Paxtons can deliver more Boost than your engine can take.
MBHD
