I pulled my tank today because while it sat it developed A pin hole and leaked about 10 gallons of 115 octane onto the garage floor (not while I was welding pans LOL). Anyway, being A 68 it only has one line coming out of the tank and its on top but I didn't realize it's A 5/16 line . It goes to the end of the pass side of the tank then is joined by A short rubber fuel line (maybe3 inches) then the rest of the fuel line is 3/8 up to the fuel pump on the block. I kinda figured the line would be 3/8 from the tank to the pump . The other thing is the tank had A ton of little lead like bb's in it, could they be part of the tank thats coming apart or maybe part of the sending unit?