@Bobzilla is exactly correct. The factory magnum valves are junk, spend the money you saved on lifters and buy (at least) new intake valves for your awesome New Zealand EQ heads.
Are u mocking me? Thats OK as they are actually Australian EQ. Am I using the old lifters now and getting new intake valves or just getting new exhaust valves since they are pitted?
What is it that makes Magnum valves junk anyway?