Originally Posted by jage
Can you provide details about correct vs. incorrect vent installation? I would love to get rid of the filling problems with my van.
You could ask SMBW about it, they seem to know about the vent for the tank.
Alternately, you can drop the tank (I think the above option requires dropping the tank also) and pull out the fuel pump. The pump has a vent pipe that drops about 4" down into the tank. When the fuel level hits that vent, fuel shoot up the vent and shuts off the station pump. You can drill a hole/hacksaw a slot/Dremel a slot/etc. about 1" down to allow the tank to fill much higher than the long vent pipe allows. It doesn't take a big hole, all you need to pass is air. Because the T-F tank is larger, 1" down on the vent is the same amount of expansion space as 4" down on the stock tank.
Salem-Kroger did mine, took about an hour to drop, drill a 1/4" hole and re-install the tank. Problem solved.