I've seen Wdemon's fly and it's a veritable rocket with the .07. It took all of 4 feet for it to rise off with plenty of ponies for a quick climb out. I have the same motor in my SE5a and 2 in my PBY. They seem to be quite sensitive to the setting of the air bleed screw. I have found once the high speed is more or less peaked out, and then you have trouble with consistent idle or transition from low to high RPM, some fine tuning on the air bleed is needed. Even though the destructions say to turn the air bleed in 1/2 turn increments, it can take as little as 1/16 turn to make a difference when it's time to fine tune. The initial set-up seems to result in a lean low end condition so I have found very minor richening of the air bleed and doing nose up and down tests at WOT and idle seem to get it in the zone.

We were thinking that something a little smaller would work in the L-4, like .049, .051, or .061.