I had a solid roller in my last 351 cleveland with the following spec's:
234/236 @.050, .588/.588 lift 110 LSA
It powered my 3500 lb Mustang to 115.89 MPH 1/4 miles, and was very tame, pulling 14" of vacuum. Great street cam.
I think Brett's last recommendation for a cam would be very nice and would peak way above 6,000 RPM's if you you got the valve events right; like having the Intake Valve Closing at 72 degrees minimum (.006 lift). Good luck and I'm very curious to see what you decide on.