Another 75hp please
I think the RPMs would be fine, and the cams, anything modern... I use Crane, Comp Cams, and Engle that I spec myself. Lunati has some interesting grinds in that Voo Doo line and most guys that have them like them. I think the RPM carb is a great match too. Go 750. All carbs need tuning. RPMs are no different, but they can be trickier to get perfect. For a street car, they will get better milage, idle better, and make the same power as most Holleys and Demons. I'm not a mad fan of Demons myself. Too many stupid issues I've found with them out of the box (I've used 6-7 over the last four years), and they never got better. I don't use them any more if I have a choice.