The fuel tank area in my Decathlon is wide and flat; the 'floor board' has some holes in it, some of which go out of the plane and some go into an empty well in the side of the fuse. I'm not able to strap the tank using the holes in the floor however. It is a flat bottom tank. The manual says to use silicon on the firewall part of the tank, and some toward the rear. I'd like to use some foam. I also would like something not terribly permanent in case there is a problem. I don't have a camera, sorry.

Also the throttle linkage runs right through the center of the firewall about an inch from the floor boards. Is it ok to mount the fuel tank above this by installing it on blocks? The engine is mounted at 135 degrees (45 degrees short of completely inverted). I'm not sure how things are supposed to line up, but from what I remember there is a rule about the level of the tank and the level of the carb or something.

any suggestions?

thanks.