Can?t reroute the fuel line to get more clearance?
You can also add a radiant heat shield on the offending pipe: http://vansaircraft.com/cgi-bin/sto...4-394-192&browse=engines&product=heat-shields
Carl
"Check out AD 95-26-13. It is on oil cooler hoses and routing of them. Although not fuel lines per say, the lines are made of the same material and the FAA says maintaining a 2 inch clearance between oil cooler lines and straight exhaust pipes with no heat shield on the pipes and only fire sleeve on the hoses is acceptable.
You said:
"Personally I don't think there is a reason to ever be closer than 2".
Maybe you would like to look at an RV-10 with the EFII system, Showplanes cowl/induction and Custom Aircraft exhaust. Short of running the line from the right side fuel rail straight forward, down and around the induction system, along the inside surface of the cowl, that line is going to be within two inches of the #2 exhaust somewhere....