So Andy, I'm trying to figure out why an unvented fuel tank would cause a fuel leak at the carb. Much like filling your lawnmower with one of those unvented plastic tanks, when gas comes out, without air taking its place you have a vacuum, causing a gulping action. In your truck, this vacuum would try to pull gas back through the pump into the tank. Right? Why would that cause a leak?


Allen
Yeah, well, that's just like, you know , your opinion, man - The Dude

1948 Chevy 3600 - goal Original restoration, Current Stage 1 - Disassembly and getting body in primer
1954 GMC 3100 goal Hot Rod, Current Stage 1 - Get body in primer
1931 Ford Model A 5 window Coupe - Old Skool Hot Rod
1945 Ford 2N Tractor - Runs great
1964 Ford 2000 Tractor - Use it every week
1974 Stingray Corvette