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I went down Home depot and bought 5/8 copper tube in a roll . spliced it in from the rear heater to just by the fuel filter with 5/8 heater hose. so far so good.
No pictures but it's pretty straight forward... you will need to hand bend the tubing and secure it. I used the 5/8 heater hose to splice at each end and to insulate the tubing where it comes into contact