technical question about the inside of the fuel tank

[burrpenick]

My 72 has 4 vents, the 2 centers are easy to blow through, but the outers are not. I was planning on plugging 3 and using one, but I could see they run to different areas inside the tank. does anyone know if that is OK, or should I keep them all?

thanks, George in Tallahassee

[Chryco Psycho]

I would just leave one open , try to run a tube upwards from the tank using the one nipple , something in the middle of the tank would be ebst to stop slosh from going up the tube