340 takes a long time to start

Hi everyone. This forum has been a great place and has helped me out a ton. I have another stumper for everyone.

I have a 1970 340, which takes a long time to start. Every day, the Carberator bowl is empty. I had it running yesterday, but today it was completely empty again. I do not smell raw gas in the garage, so I don't think that it is evaporating or leaking anywhere. I had another carb that I put on, because I thought that the carb was leaking somewhere, but I have the same thing...

340 takes a long time to start
Author: RamRod