I need schooling - old vs. new engines

I would be curious to hear what your cam specs are. If you get a chance to look them up.

I did do some digging on the Comp website and the biggest cam I could find for a non-VVT Hemi was a Stage 3 cam with 277/284 advertised duration, 224/234 duration at 0.050 lift, 0.632/0.619 lift and a 115 LSA.

But you can't be making 650+ hp with that cam can you? Seems like a pretty small cam to me. That's smaller than the 380hp crate motor cam, duration wise.
Dion, I think that cam is for a stock piston, hence the short duration. I think they try to make up for that with lift. I find there aren't many cams advertised for the G3 that are for aftermarket pistons only. I'm sure that's to prevent the uneducated 2015 challenger owner from late night online shopping from buying a cam that will trash their valvetrain. I'm sure you know any cam company can grind whatever you want. The cam I run in my 408 is actually a grind that's advertised for a small block chevy.

I was actually looking at that cam, but will likely speak to some people familiar with G3s before I make a purchase. Their site actually claims +86Hp with that cam. Combine this cam and a set of long tubes, that will be a tire fryer in a light A-body.