Single or Dual Pattern Cam

What cam is better for the building of my small block? One of the posts earlier suggested a LSA of a 108*. I went through some of the lunati cams and I seen a cam with 275* and 220* at 0.050", I think that the lift was. 475 Both the LSA and ICL were 108*. I know that I've been given suggestions on a cam which I'm going to write down that information as well, wanted to know what you guys think about this cam.

As for single vs dual, if you have a balanced intake exhaust tract theoretically single pattern, which most of us don't so dual pattern.

As for the question above, depends.
Picking a cam depends exactly what you want out of your combo and your own personal taste, the more things you expect out of your combo to be able to do the harder to find the right balance and might have to try few.

If I wanted a cam, with 108 lsa I'd go through all the cam companies look for the ones that will work in the powerband I'm looking for and narrow the choices down.
Depending what heads we're talking about cam lifts will be in the .450-.550 range I'd use the ones with more lift.