What would the max lift for a magnum headed la 360? I've narrowed it down to 2 K Kits. One Has .506/.506 lift with 1.6 rockers and the other has .516/.516 lift with 1.6 rockers. Is .516 too much? I read somewhere the magnum heads can go to .525 lift or more. Also the cam with .516 lift has a 108* lobe seperation, that will not work with power brakes will it? Is there a way to get it to work with power brakes? Thanks Moparts!