Please use the pinch test to adjust your engine.

With the engine at full throttle, briefly pinch the supply line. If the engine:

Dies immediately - it's too lean.
Runs a while, then picks up speed - it's too rich.
Picks up speed briefly then starts to die - it's right.

Back this up with a test flight. Pull a loop at full throttle. If the engine dies over the top, it's either too lean or you're looping too tightly for the fuel draw capability.

Dr.1