ORIGINAL: pe reivers
None!
The drop off point where you still have top rpm already is 10% to 20% rich!!!!!. Gas is not glow.<br type="_moz" />
I do not have a tack, but I lean the engine out for top RPM and turn the hi-speed back not to really drop RPM...but to make sure its not too lean. Maybe about a 1/16 of a turn towards rich. I got to get a tackometer, RPM thingy....Ha! Oh well...I have not burnt any pistoss up anyway!!!!

Capt,n