I am getting my 52 chevy pick up back togeather and trying to get it to start the first time, all I can get is bacfire thru the carb. I rebuilt the type B downdraft carb with a kit and found a problem. The ball in the power valve assembly is stuck in the plug, allowing fuel to pass irregardless of mercury level pressure. Is this part of my problem? Does anyone sell just this part? Any suggestions to get engine to fire instead of backfire?
