Where do 272 stop making power? Springs and Retainers need?

[RedTurboEclipse]

Just had a great tune @22psi stock.I bought the delta 272s turned the boost down to like 14psi put my stock fuel map back because I'm parinoid of running lean.So overall the crappiest tune ever and I can honestly say these cams rape on the top end.I love them and they sound bad ass at idle.And the guy told me the 272 grind is based off the HKS cams.

Are these the Delta 272 i/e cams that are $180-190 shipped after core exchange?

 

[95gst16g]

Are these the Delta 272 i/e cams that are $180-190 shipped after core exchange?

Yep I think they were like 250 then I had to pay 10 bucks to ship the old ones back to them and I got 60 back for the cores.I just dropped them in no degreeing and they are working just fine.You do lose power down low but that was expected but since I have a 16g I make power at like 3k anyways.