Cam help

The one that it was born with?
The AirGap may be a bit more intake than you need with the factory cam, so if you have it great install it, it certainly won't slow you down.But if you don't already have one, then consider what you do have.

About the cam;it really depends on the application, and the combo. Someone could tell you what works in their hot-rod, but it might not be the best one for a tow-truck, or a race-car, or a DailyDriver.
A cam for an 11/1 engine would not be the best for an 8/1 engine.
A stick can use a different from an auto
And 4.30s would take a different cam than 2.76s
And 4000 pounds or 3000 pounds.
So hang tuff, you'll get it sorted soon enough.