Burned pushrod

Chamfer lifter hole? Checked for oil flow when I installed restricters, larger on restricters would let more oil go to Intake side, lifters are not bushed I need to pull lifter valley cover to check, lift is only .691 In. .652 Ex. something worth checking out. Indy Legend Hemi heads don't have exteral oiling. I was thinking of buying a new exhaust rocker, but at a 100.00$ a pop was looking to try anything else first. Oil pressureat idle is 40lbs. 80lbs. running.