[DougD]

Originally Posted by blue sky

Could someone specifiy whether the fuel lines from the tank to the fuel pump on a MK2 289 street car are 5/16" OD or 3/8" OD. A normal 289HP Mustang had 5/16" while the R models received 3/8" but I don't know if AC applied the same specifications. I classify the street cars as being fitted with a single 715 Holley carb and not Webers. Thanks so much. Regards

blue sky
I'm no expert, but I believe that the 260 and 289-powered street Cobras did not have a 715 Holley. They used a standard Autolite carb that came on the engines from Ford. Not that it matters for the fuel line, but I assume you're trying to replicate an original car, so the carb is pretty important to the "look". What came on the Mustangs generally has little or no relationship to what came on the Cobras.