Cam choosing help

Yep, maybe change pushrods. Definitely have to swap out to adjustable rocker arms. The Demon has a Crane in it. Used a Mopar purple shaft on another motor. Was satisfied with the street grinds used.
Unless you have a sophisticated engine management system, you may in fact have to choose between power and driveability. At minimum you'll need knock sensors, an O2 sensor, and the ability to substantially retard timing. With 11.5:1 compression, you'll need an aluminum head to run pump gas. High duration/overlap cams respond well to lots of compression and low gears.