Make sure fuel lines you run are protected from sharp objects, abrasion, and heat sources. If the fuel gets too hot, the liquid fuel will turn to a vapor and you will have vapor lock.
D25D, D300D, 815B, 815F, 3306, 3306B, 235B, 235C, 235D, 330A, 330B, 330BL, 350A, 12G, 12H, 140G, 140H, 973