I’ve just installed a remanufactured Ford 460 with stock flat tappet lifters and cam in my 1989 race hauler. Break in seems to have gone well with Royal Purple break in oil 10-30. I have about 300 miles on the engine now and getting ready for the first oil change. Should I still be pursuing a high zddp oil? Rotella? Efi engine but no catalytic converter. Thanks for recommendations.