Thanks for looking around.

While you were doing that I was converting the carb to have a low end mixture screw..............................not!!

I removed the fixed pin that is in the center of the barrel and fits in the little straw. I then, on the second try, drilled all the way through a 6x48 machine screw with a teenie tiny bit. The bit was about 0.001 smaller than the original needle valve. I used the bit shank to make my new ajustable needle valve. That went in the 6x48 machine screw with loctite. I tapped the brass carb barrel 6x48. Hey it is ajustable now! Not really. [&o] The pin controlls the top end more than the bottom! It does allow me to lean out the bottom though and see how it idles with a correct mixture. It was running rich before, at idle, when the top end was good. The top end can be ajusted to some extent with the pop off lever. This is becoming a tangled web.