Does anyone have a part number for a Holley 715 equipped '66 fuel filter? Mine is completely missing and I'm looking for a replacement, even a local parts store piece would be OK for now. Any pictures of a correct one?
The correct OE filter is a C5AZ-9155-B, Motorcraft replacement# FG-15. It requires the big adapter nut Shelby used on 66-67 GT350's because the Holley inlet thread size is smaller than the filter thread size. If you don't mind a bit of non-originality, the FG-14 filter (Ford# C5UZ-9155-A) will thread directly into the Holley bowl so the adapter nut is not needed. Last time I checked both the FG-14 and FG-15 were still available from Ford.
I have a nice restored used one that I purchased from Jim Cowles many years ago. I never used it. It is still in the sealed bag. Let me know if your interested I will send you a pic.