i have a traxxas blast that i wish to modify. i got this boat knowing that it was not the fastest, but i only wanted to have one motor and battery to deal with not 2 like the villan. i have lots of room to run the boat so that is not an issue. i want to make it baically as fast as possible. what should i do. i have 4 - 6 cell batteries, that are all brand new, so is it worth it to go up to 7 cell batteries? will the added weight reverse the benefits of the power? the speed control in it can handle 7cells i think. no to the motor. what is the best motor i can get, without completely redoing the inside of the boat to make rook for a bigger motor? thanks