I'm going to assume you want to make a lot of power with this motor on pump gas,yes? If so you need to open the valves as much as you can and keep them open as long as possible I like and use Comp Cams for both race and pump gas street motors On your deal I would look at using thier XE285HL or the bigger XE295HL hydraulic lifter cams or their solid lifter XS290S cam. If you want to go to a roller lifter cam and lifters look at thier XR292HR hydraullic roller or the XR292R solid roller lifter cam and lifters Keep in mind on the roller cams you need better valve springs, keepers and retainers and a brass oil pump drive gear I have Comp grind me a bunch of custom grind camshafts for my builds, I go big due to knowing the the stock type BB Mopar heads limit the power you can make with our motors so you have to fool the motor to get more air and fuel into it to make more power BTW, 471 C.I. ,3.91 stroke motors, rock Have fun, no matter what