so I took the HD to the dyno and put 383\477 down. Now I was told that the lower pulley I put on was a #6 but I cant get it to boost past 10psi which is only 4psi extra over stock. A #6 should have me at 12psi, Right? I also have exhaust, MAF and a tune. Im changing the upper to a 2.9 quick change and that should put me at or over the 400\500 goal.