I just last week decided against a roller cam because my engine builder would not approve of anything over .630 lift and 255 at .50 thou. and am currently running a .590 mechanical Crower. Those limitations were with this in mind:
427 SO Standard stroke
Edelbrock Single plain intake Port matched to Polished and ported Edelbrock heads
JE Pistons
H-Beam rods, Etc.
The point for me was the added expense was just not necessary for my application so I took those funds and had them install an unnecessary Jesel Roller Rocker System along with modified pushrod
oil system. There is always someplace to spend money! Best of luck and by the way with a .589 lift solid the car rocks back and forth at idle and revs like a banshee!
Cracker