What cam looks to cover both the towing side and the street side?

 

04 Wildwood 23LK
25' and it weighs in about 6500 lbs depending on the trip.

 

Then you will want to stay away from torque converters and high RPM cams.

A 6.0 swap or radix magnacharger would be a NICE increase in both towing power and unloaded performance but is expensive because you have to account for a performance tranny rebuild as well. A little lower in the price scale (and thus, less performance gain) would be long tube headers and tune.

The exhaust and tuning dropped me a 1/2 second in the quarter mile and made a slight difference in towing power for me. It's wasn't a great bang for the buck though.