RE: Have you ever hear of this?
AGR,
You may want to try a fuel pump. I have a Tower 75 in a BUSA Enforcer. Don't know if you've seen one but it is a delta wing pusher weighing about 6 lbs.
I use the Perry P30 pump because I was concerned about the long fuel lines, so no muffler pressure issues. I'm also using a Mac's Products exhaust deflector which may also help.
I'm using an APC 11x7. Who makes an 11x8 pusher?
Patrick