WILDCRASHWILLY

Thanks for the input do335a,

I shortened my carb line during the change over but, it's still probably 16 inches long total length. Like you, I also thought about a plugged vent line. I checked it and it flowed freely. The tank is sitting on the CG under the wing instead of up frontvwhere the plans call for it. When I first got my new plumbing configuration done yesterday with the chk valve. It easily picked fuel up and got it to the carb now which it wouldn't do before. The engine popped once and only once,,, then nothing. I think a very small shot of gas entered the engine. After that nothing. And although fuel is up to the carburetor, none seems to get through the carb in to the engine. It's as dry as popcorn fart.