Just re addressing this to all the new guys, as this is a great idea that has been long implimented in the helo community. I just picked up a used Jato 3.3 and it is my first truck and she is thirsty. This mod is not for the "keep it light" racer but more for the back yard and lunch hour guys that just want to get in a good long run with out having to refuel after a few minutes. I put a 4 OZ tank in my Jato and I get good,long runs now. The only real limit is the interior size of your body for the second tank. Listed above is the way to do it easily. A headertank also helps with foaming and bubbles in the lines. I also like the extra weight up front on the over-powered, 2 wheel drive, STs.

Chris