got a forsale project going

Ive worked on the darts fuel system all day today.Ive run all new steel fuel lines,i bought 6 inch sticks and coupled them with unions,and bent them to fit.Now they leak at the fuel pump and the regulator.im gonna try some teflon tape made for fuel use,the yellow kind,and see if that stops the leaks.If not,i dont know what to do next.I really want to start driving the old girl again.