Help appreciated

Before you change fuel tank lines and then frame rail lines- what are you running? If stock engine the factory 5/16” set up is good. 3/8” upgrade is better and 1/2” is for a sick individual with high HP fuel needs.
Remember that if you change one part then follow thru with the whole system. Pick up to frame rail lines to filter to fuel pump to carb.

Also a vented tank is scary with out a roll over check valve built in. If you were spending money- do it smart. Be safe, this new style fuels evaporate at a disgusting alarming rate and the by product is water so the more you can seal the system up the better.