https://youtu.be/sy3NeKYXoe4
https://youtube.com/shorts/-hWb7vp3Xkc?feature=share

So long story short I did a rcr prodominator cam with my dod delete. I can’t figure out for the life of me what the hell this noise is. It almost sounds like a pro charger coming out my exhaust mid pipes. Exhaust is all tight, valvetrain is tight, it’s not misfiring because I had hptuners hooked up to it. But every time I go above 1300 rpms I get this whooshing noise under the car. Buddy of mine saying the lifters are probably wiped, even tho they are brand new ls7 lifters. Any ideas?
Car is a 2011 caprice with 48k on the clock