Roller cam schooling needed

I have never ran a roller cam, but I am concidering it now. I have ran mostly solid lift cams in the past.(last one .590 MP)
1st question, What will it gain me, Pros and cons? and what else is needed, machining and parts?

2nd Question, What is a good cam to run with my combo? .030 over 440, stock stroke, 13.2:1 comp, dome pistons, stealth heads, Team G intake, 1050 cfm dominator, Turbo Action "J" convertor, 3270 lb E-body, 29.5 X 11.5, SS leaf springs.

Thanks for any help, Brian Dunnigan

go look at Lunati cams website. all the schooling you'll need