Thanks to all who responded to my question. My only remaining question is will the low end needle reach a stopping point before it falls out of the engine, indicating that it is completly closed? Otherwise how will I know that it is closed so that it can be set at 1 1/2 turns?
By the way , I don't give up easy. I struggled for six years learning to fly this P-40 repairing and rebuilding it three times. It was all well worth it for all I have learned during this time period.
Thanks again Guys.