Is there anything special you have to do with the fuel tank for a pusher? My plane is having problems with the pusher engine. I have the tank facing forward and about a foot of fuel tubing coming back to the engine. Could the tubing to long? sometimes it wont even start, but when it dose the fuel always backs up in idle, then when I go to WOT it dies. I have my low end leaned out so I dont think thats the problem.