The 2.02 will kick in at 6,000 rpm's where the 1.94 left off. There is an unanswered question that should be asked. What does this truck weigh anyhow? I mean if you're lugging around 3800 lbs with 33 in. tires, I'd be thinking about a 400 crank to build a little more torque. At any rate try to keep your reciprocating weight down,(ie rims & tire wieght, driveshaft, etc.)
Good luck.

tirekicker