I am no expert but I have posted with similar problems and everyone has said that I was too lean!
First adjust the high speed needle for top RPM and then richen up about 3 - 4 clicks.
Then try the pinch test with the fuel line?
If you pinch the line for just a second and then release it.
If it dies right off it's too lean
If it speeds up just for a second and then returns to normal RPM that is "Perfect"
If nothing happens it is probably too rich.
The adjustment with the pinch test should be done to the low speed needle, and then readjust the high speed like before.
Have you checked for air leaks in the lines and tank?
Make sure your clunk is not flipped up front.
Please verify all of this with someone else because I have only been doing this stuff for about a month!