Roller cam suggestions?

Thanks Rumblefish for the reply.It's a 360 out of a 1989 van.727 torqueflight,not sure on axle ratio as of yet,but probably highway gears.Tire size will be the tallest and widest I can get in a minitubbed 1972 dart.I do have a question in regard to price of roller cam.Why are rollers so much more than regular cams? :headbang: