Originally Posted by BEAST477
What's your guys opinion on them. Wondering if i should remove them in my new 540 before i fire it? Reason i'm wondering is would my Isky EZX lifters and T&D rockers like the extra oil?
Don't starve your top end either, you need oil up top to help keep your valves springs at a reasonable temp. Oil lubricates and also dissapates heat. We do run restrictors with spray bars in the valve covers. Depends on the application. Straightliners not as critical, endurance, and roundy round engines a little more important.