I am stroking my 454 with a 4.25 callies crank,6.385 manly rods,srp pistons with 9.5 comp.,and edelbrock oval port marine heads. My question is i was thinking of going with an hp500 cam, (crane part # 169611)but dont know if my fuel injection will work with this combo.

Talk with Arizonia Speed and Marine. They are in Hot Boat and Power Boat Mag. They can reprogram your ECU and make it compatable.