Was talking to a motorhead oer the weekend, i told him i have a comp cam installed, and he said to make sure im using a special kind of oil that has zinc or something in it. he said depending on the type of cam, you might have to use special oil. I have a Hydraulic flat tappet CCA-12-210-2 CompCam with a CS 268H-10 Grind Number. My engine is a 350, with 37,000 miles on it. What kind of oil should i be using.