Magnum heads on a 74' 318 LA

My heads were only good for .510 lift, I think you might want to check the max lift on yours. have you bent any pushrods?? Something is way off, I get tons of oil to the top end. My cam's lift is .460 with the Chevy roller rockers and using stock Mopar roller lifters. The contact patch on the valves is dead on on the valve stems and the engine runs quiet. Are you bottoming the springs out???