Dan,
It is confusing isn't it?
I own Superformance 1202. A little older than yours. Same engine. Ford Motorsport 351w 385hp.
It had about 13,000 miles on it when I bought it November 2006. About 22,000 now.
I asked the same questions when I bought it. I went with Mobil 1 fully
synthetic 0w40. Engine runs around 60 pounds of pressure. Temps are around 80 C at equilibrium. A bit cooler when it is cold outside. Only runs hotter if I stand at idle without the cooling fans or in summer if I run it hard. Not much hotter though.
The engine has been bulletproof. No problems.
Jack