Fuel line size

--------DAM ROB! LOL---------- I`ve ran copper, s.s., reg. rubber 1/2", and now lifetime fuel inj. - 08 and ptfe -08 on my currant toy. The most important thing is, where you run it! I`ve got it inside the frame -thru the subframe connectors, not much chance of anything happening to it there or on the outside of the frame work, away from the trans., clutch and heat .