Ok Im using a Dubro fuel fitting on top and there is a hole in the center of the fitting that you plug the fill line into when its not being used. If i dont have the fill line plugged in there will be a hole. I just bought a Hobbico power panel and i have a few question. My starter has aligator clips so should i just plug the banana clips in and then clip on the aligators or do i have to cut the clips off? Also on the power panel theres a switch for the fuel pump but i dont under stand how that would work, you have to move the switch on the fuel pump to itself to get it going... It also has a glow ignitor charger, is that going to drain my 12v if i use it?