Open up the idle jet about 1/2 turn, or better yet set it to the factory default setting. Same for the high speed. Now get the engine running and let it warm up a bit. Go to full throttle and lean out the high speed until it starts to drop RPM then go back rich about 1/2 turn. Idle down as slow as you can and at this throttle setting, lean the idle for maximum RPM. Go bach and do the high end one more time, go back and do the low end again. Now when you punch it, if is heasitates and stumbles, the idle is still a bit rich go about 1/16 turn at a time lean until it jumps to life. It it dies when you punch it, the idle is to lean, so go rich 1/16 turn at a time until you get the good throttle response.

Check for any air bubbles in the line. If you see any, you have a air leak and it needs to be address first.

The above setup addresses the idle and transistion, but isn't the peak performance for the engine. It is close though. I would run the high speed a little on the rich side for a few more tanks before going for top performance. It will give you good reliable performance though.

Don