Looking for help on my super C. I have a mechanic that has been working on it and is still having problems getting it to run. It will start but runs rough and cannot open throttle without it killing it. I was hoping I could get some suggestions here. He cleaned out the carb, new gasket between intake and carb, spark, timing, compression, all are okay. Cant find any leaks in manifold. It ran good then when I was done raking hay it started hesitating a little like it was running out of gas but there was gas in it. I put new gas in it in case the gas was bad and no difference. It will just run at idle but it is rough. He doesn't think enough gas is getting to the engine but not sure why. Any help is appreciated.