looking for some 4.6 v8 cam advice

I own a 99 ford f150 4x4 half ton short bed stepside truck, it has a few upgrades to it ,k&n cold air intake,edge evolution programmer, 2.5 inch fabtech leveling kit, and new 33 x 12.50r16 mud tires, it has a decent amount of power for what it is but id like to start getting into the motor a little more and im looking for a small cam that will work with my stock valves and lifters etc, what would be a cam for this motor? its soon to get some other stuff like underdrive pulleys and electric fans but id like to go with a new cam first