"It's much easier EXPERIMENTING with other people's carbs isn't it Gordon?"
Yeah, I thought about that an hour after I posted, but I realized two things:
1. Whatever Rich does with the air bypass screws, he'll learn something of value, it won't hurt anything, it may improve something and it is totally re-settable in under five minutes, plus:
2. It's now made me curious and I'll be out there, today, playing with mine on my Dells just to see what the heck they affect. Not that I don't believe Dan, I do... But self-experienced knowledge is a wonderful thing and I can add that experience to expand my service manual for my son, for when he inherits my cantankerous old car. With all of the custom stuff on it, even I need a comprehensive service manual (my tired old brain ain't gettin' any younger!).