I just did a cam swap in my 06 GTO. New double roller timing gears, lifters, pushrods and, springs, cam .50 219 int. 227 ext lift 607 int. 614 ext @ 112 deg. RPM power band is 1500 to 6500 Comp part. #54-456-11. Well hears the shit storm I have and I could really use some advice!! I installed the cam straight up, reassembled the motor and started it up. I knew I was going to need the car tuned because the size of the lift. She’s running and…she has a very loud taping noise!!! Like not enough oil, a couple of lifters collapsed, or the stock rockers just can’t handle the cam????? I pulled the valve covers off to check if any push rods got bent… Nothing!! I got real good power even without the tune! My oil pressure is 40 to 45 psi. The car has never sounded like this until I installed the cam kit?? Any advice would be HUGELY APPRECIATED!!!!