Camshaft opinions

Looking for some camshaft suggestions. I picked up a 383 with 9.2 compression 906 heads. Will be going in a dart with auto and 3.55 possibly 3.91 gears. Currently has 284/484 cam in it. A bit too much for what I'm looking for.Also it needs more stall speed than I want, Previous owner raced it a bit I'll be using as a street engine, Mostly highway use. Any suggestions? Was thinking Comp cams XE 268 or 274 and getting the 268 or 274 convertor in their catalog to go with it. Any one know anything about the other 284/484 cam with the 112 centerline? Thanks. Neil