Rusties are a great little truck and that 3.3 is a little much in my own point of view. I almost always talk my customers into going with the new 2.5R from Traxxas plus its only $100.00 exchange and just a little more to upgrade from the 1.5. You put in a 2.5 and its more than enough power unless you want to just go in a straight line like a Jato