I have a very similar setup to you using a 360/408. Out of the box edelbrock heads hyd flat tappet and 1.6 rockers. I went with a racer brown ssh-25 238/238 @ 0.50 and stock edelbrock springs. From what I can tell this brings ne right to the limit of the heads. I did have to do some clean up on the ports to smooth them out.
Sorry I can't comment on the roller.
Scott