Hello,
Jerry, the 78 westy was stinking up the garage with gas fumes. I had thought it was just a VW smell! IN fact I observed a drip of liquid recently and was horrified to see that it was gas! it looked like it was dripping out of the exhaust system, but it turns out it was the rubber line from the fuel pump to the metal tube that goes through the motor wall.
I have removed and replaced a section of hose, and the bad one was split length wise for a few inches. the split of course was on the not visible side.....
Check those rubber lines very carefully!
Marco