It seems to be fine max psi is 6.5 under WOT and 8lbs at each shift. Seems the plog, rear pem, and 3" catless dp dropped all the restriction and it lost 1lb of boost seems normal. Car seems happier under WOT with the extra trans fluid also. Its got the factory pulley on the sc. Aeroforce shows no misfires, dtc`s, no kr. I think its the heads, not in a bad way though.