I have the same motor in my ol Steiger Panther PT350... good runner as long as the RPM's stay up, but not much bottom end torque.

The pump is pretty easy to turn up too, little spring in the bottom of the pump that when shimmed will really load on the fuel, they get a little toasty... The only other thing they are finicky about is coolant additive since its a wet sleeve engine, but I would figure you guys would keep up on that stuff.