Opinions on this Custom Comp roller cam, engine combo

Thanks guys. I didn’t want to wait months for a Cam and then I saw this one on eBay. It’s new and I got it for $300.
The heads are stock, 2 yrs old, with 300 miles on them in a Chrysler 300 with a 383. Will be blending bowls and gasket matching. Haha with all those “300”s maybe I’ll get lucky and they’ll flow 300. Hopefully at least 275
How about rockers, 1.5 or 1.6 ?