I have a 97 4.6 NPI block with all forge internals it's the eagle rotating assembly from mod max with the -17 piston dish and I think it said compression would be 8 7 to1 and wanting to get the pi twisted wedge heads but not sure how much it will bring up the compression I want to run on pump gas this is my daily driver and using a Kenny bell super charger for induction and want as much boost as possible with out blowing the motor does anyone no what the compression will jump to and the most boost I can throw at it thanks in advance