Just installed a new sending unit in '75 CJ5.
Was hoping to clean up some of the plumbing, just want to make sure this is going to work before I put the body back on it...

2 Fuel lines come out of the side of the tank, to/from rollover check valve and/or carbon cannister?
Can I plug them up?

Sending unit has 2 lines as well, I have new lines to run to the carb, the 2nd line I'm guessing is return line from carbon cannister?
Can I plug it?
Should I leave one open as a breather and put some type of 1 way valve on?


Will I be getting enough fuel to run a Holley Truck avenger 4Brl (670CFM) sitting on an Edelbrock Performer(non egr) intake? (AMC 360)
Holley says the recommended fuel pressure is 5-7 psi.


Thanks.