Gentlemen, Thanks to all contributors, this site has been a big help. I have heard from more than a few this is the place to find a carburetor/help. I have a '72 1210 with 345 cui engine. It sat for 15 years and is in great condition, I just can't get it running well. With presumed carburetor problems, I cleaned and put a kit in the carb (2300, list 6391). I found rust in the fuel filter so I changed the filter and pump. I installed a new fuel line and removed the tank and cleaned it. I timed it. It still won't run right. It will start (barely) but won't idle. It idles way rich and I hear a hissing/squirting noise in the carb throat. I have replaced the power valve twice. I removed the metering block and lightly sanded it to make it true, I hope. I have adjusted the float height and idle mixture screws until I am blue in the face. When I adjust the idle mixture screw all the way in, it does not die--but then it won't idle anyway, I have to open the throttle to get it to run. I am ready to start over with a new carb. Does anyone have a rebuilt 2300 they want to sell/trade for mine? If not, what new carb should I buy? Thanks for any help.