Hey guy's, I have a 2010 SE Ultra with stage 3 race heads which include port and polish, larger valves, stiffer bee hive springs, valve guides, and head resurfacing to bump up the compression, and a ported throttle body. Doherty intake and a Rinehart true dual system. Want to do cams, lifters, push rods and roller rockers this winter. The builder is recommending S&S 551 or 585 cams for the upgrade. What is the difference with these two cams, and what do you think will work best. I would like the power and torque to start around 2500 build from there if poss. Any thoughts would be very welcomed. Cheers.
Also wants to use SE push rods, SE rollers, and Fueling lifters. Thanx.