You must take into consideration the run time issue. Do you race 4 minute races in the Monster truck class? If you race longer than 4 minutes you may not make it. A friend and I race Emaxx's against nitro trucks on a slightly tight track with not much of a straight away and usually beat them. But we have good packs and good chargers. We are just running the stock titan motors.
Electric is a nice change of pace if you have to go indoors on carpet in the winter to race.