I only use the heavy re-enforced wall marine hose. Where the hose come out of the fuel pump and goes to the fuel filter and where the hose comes from the filter back to the VST will kink and close off if you use thin wall automotive hose. That is not molded hoses on the fuel lines their. The molded ones are at the bottom of the electric fuel pump and at the top of the VST for the fuel filter and fuel regulator. Do not over look the filter inside of the bottom hose on the electric fuel pump.
“The world will not be destroyed by those who do evil, but by those who watch them without doing anything” GOD IS GOOD