My brother is running 3 Evo. .46 motors. 2 NT's and one PTS version and they all run superb. I had an Evo. .46 PTS and it ran great also but traded it for a .40 Rossi. If you are getting tiny bubbles in your fuel lines and can't find an air leak, you can put a couple teaspoons of Armourall/gal of fuel and no more bubbles. You could also put a fuel filter between the tank and the motor to help eliminate the bubbles also.

Cheers

Curt