If you left it running for a while idling, and it died while idling, the engine may have been just a click or two rich.

It would have been better for you not to play with the needles, more than a couple of clicks.

That it would not run after this points to either a fuel line clog/restriction, including the possibility of debris in the carb needle valves, - OR - as which always happens with most of the Evolution engines... your engine started to produce the break-in "sludge" that we ALWAYS see with Evolution engines.

While this does not damage the engine itself, it can lead to the pressure ( and fuel ) nipple getting clogged up, which in turn will result in what you are seeing or bad performance in the air.

You need to check that your fuel system and pressure nipple allow fairly free flow of both fuel and air.

Clean them!

Once you get the Evolution running ( hint, set it back to factory defaults and start from there.) run a tank full and again check the nipples.

After the 2nd or 3rd tank tighten the head cap screws which will be a bit loose at this point.

Tune and fly the plane and before your next trip out check the nipples yet again.

Continue to do this until you have run a good 1 1/2 or MORE gallons of fuel through the engine.

It will continue to produce the grey metallic sludge through the first gallon. This is normal for the Evolutions.

I hope you are filtering your fuel too, and consider an in-line fuel filter....