ken5124 said

I drilled a hole in the gas tank fill tube and installed a brass fitting with a barb. Any overflow on the vent line can drop right back into the tank. I ran a new line back to that fitting.

Unfortunately I do not know if I am getting more miles per gallon.. I used to get close to 22 MPG with the carb , 2.76 gears. But it seems to be better. Won;t be able to check until snow is gone.

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