625 AVS leakage

I've been gone for a while and have not posted for a year. It is time to start working on my '68 Dart 340 Tudor.

My Old Carter is leaking again. It was rebuilt 4 years ago. After it sets for a couple of days, the gas is all evaporated out of the bowl. I am wondering where the gas is leaking? I had it apart several times because of a miss. (bad coil wire!)

I am thinking of getting a new 650 AVS to replace the old carb. I put one on my Duster 360 and it ran sooo good!

With the price of fuel going up I do not need to have it leaking fuel! Anyone have any ideas on what is causing the carb to leak? Where is the leak?