Swede - The Sportworks .26 V2 is the one you want for a truggy. At $135 or so you will have a motor that will not be beat at almost any price. It will pull hard but most importantly you can tune it just right to get the best fuel mileage and performance for your track.
For the money I would run the Dynamite Platinum .053. It is a mid range pipe that looks great and is very cost effective. With a motor this big you do not need a low end pipe and with this much natural torque on hand you can always go to a bigger gear for the top. I doubt very seriously you will ever use all of this motor. The tracks are not that big.
I'll be honest with you. People will make fun of you for running that motor.
"That is not a RACE motor like my Blahh - Blahh - Blahh....." Just remember that when you pass them anywhere on the track at will.
TEX
