need instructions on removing 1966 gas tank

[xtremelowz]

just got a '66 'bird and it runs awesome from a gas can but can't get gas from the tank. I'm planning on having the gas tank flushed and sealed by a local radiator shop that did the tank in my '65 Lincoln 'vert perfectly...figured I'd change out the pick up while I'm there. So, I have the straps removed, plug and fuel line from the pick up taken off and tank won't drop. It almost looks like the exhaust is getting in the way but before I just go hacking it off was wondering if I'm missing something. Thanks in advance for everyone's help!