LAST EDITED ON Aug-03-04 AT 05:50 PM (CDT) I have one of the R/C versions myself, but have only flown it on a plane that had serious vibration problems causing fuel foaming and engine shut-down in the air. I did aid another flyer who had some problems setting one up. Since most of the Engine Gurus in this club are Fox Bashers, he asked me for assistance. I richened up the high speed needle a bit, then did what Pete Chin recommended. I adjusted the idle first to about 2100 Then set the top end. We thought 13400 was very good for the top end. When he landed, found out he was using an 11-7.5 prop. A lot of the imported .60s at our field won't turn that size prop at that speed. Definetly a powerhouse. Later some friends in florida retuned the engine to about 14000 on the same prop, after it got broken in a bit.
Excuse my refering to R/C nere, but I am in a local R/C Club, in a local CL club, and in a local Flying Aces based FF club. Can't wait to retire and have time to do some serious flying. Almost forgot, seems to me Fox has a CL venturi and needle assembly available for all their .45 and up engines to convert from R/C.