ORIGINAL: Leigh R/C
The throttle was brought up slowly though the rev range to the high end and back down we had a taco on and it was pulling 6,600 rpm. Then back down by the 2dr or 3dr time we noted that the rev had dropped by 600 rpm. I was trying to get the engine to blubbery rich but it wasn’t happing. I hope that gives you guys some more info.
Sounds to me you were trying to find the correct carb settings in a proper way. That's the way I do it. You have to open the throttle sooner or later to see if you are rich enough.
You didn't do extended full throttle runs, came back to idle, went back up. How else can you set a carb????? BME should stand behind the engine if you ask me........