I think the Summit cam that has 216*/.454" cam will be nice. I dont Know the part number off hand. It is the old Crane Cam grind. I ran one in a 360 with stock high stall converter and was excellent.
The 50052 Summit cam has 10 degrees more advertised duration yet it has less duration at .050 then the Comp XE262 cam. Those 10 degrees means it will have less cylinder pressure/compression, less duration at .050" and less overall lift. That is an old cam design with slow ramps when compared to the XE line of cams. It's a better off the shelf choice IMO, but a custom cam would be a best choice.