Yes Andy the oil pressure will be checked out. The cam was installed as per the cam card 108. Lift and duration was spot on when i installed it . don't know why the power band is below 6000. yes max wedge ported heads. porter racing set up my heads for me. The headers were pretty small he used I assume that also effects the power band. may have been 1 7/8 or 1 3/4 . Mine are 2 1/8 to 4 inch.