<span style="font-family: tahoma, verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px; white-space: pre-wrap; ">I am getting close on my EF Extra, here are some views of the choke setup as well as the throttle. I wanted to make a plenum out of the engine box so I put in a thin plywood bulkhead and used a JR aileron servo with a carbon/T1 pushrod (I know, but I had it and it is so easy to make). I am assuming that it will be tail heavy so I have not cut off the excess threads on the through bolts for the engine mounts, and am going to use the big 3200 LiFe. If I need to reduce the front end mass, I can do so later. There is industrial Velcro under the ignition and it really dampens the vibrations well if you don't crush it too much. Someone mentioned grommets, and I thought it was a good idea, so I ran the ignition wires through the firewall with a rubber grommet. </span>