I plugged them on my 69 because I didn't have the vent trap thingy but if I had it to do over again I would find some way to leave them open
It doesn't pull a vacuum on the tank, what it does do is build up pressure
If I drive for long distances and stop for gas, when I lossen the cap, the pressure almost blows the cap out of my hand
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Dean Call
Team Gold member #3
A.C.E.S. # 00235
Mid America Chevelle Club #001
chevelles.net
My 69 SS
If you weather the storm, you'll reach the port.
[This message has been edited by Dean ]
It doesn't pull a vacuum on the tank, what it does do is build up pressure
If I drive for long distances and stop for gas, when I lossen the cap, the pressure almost blows the cap out of my hand
------------------
Dean Call
Team Gold member #3
A.C.E.S. # 00235
Mid America Chevelle Club #001
chevelles.net
My 69 SS
If you weather the storm, you'll reach the port.
[This message has been edited by Dean ]