jacwh9

DO I NEED ANY WORK DONE TO RUN A Z303 CAM AND COBRA 1.7 ROLLER ROCKERS ?

mkspeed26

do you mean machine work??? the only problem i can think of possibly happening is valve-piston clearence being to small and ur valved hitting ur pistons. i dont know off hand if you will have problems, but im sure that someone at frpp could tell you.

619socalstang

youll need to flycut the pistons to take advantage of the cam and rockers, you should also replace the lifters.

USAMuscle

Make sure your valve springs can handle the new cam. You don't want them binding up on you, or you're going to be in a world of hurt.

vfast

a better choice would be a cam with daul pattern and lift based on 1.6 rocker so later to add lift you can go to a 1.7