Hello  Yes  Electric (14 psi) at tank with filter (?) before pump. Stock line to front, short stock type rubber to three port  regulator. Rubber hose from regulator bypass to return line back to tank. Fuel regulator is where stock FP was. Fuel line  leaves regulator (like stock F-code) with canister type filter before carb. If i cannot find a filter that fits  before FP may skip it and go straight from tank to pump. Thanks for comments

Just a thought ... 

If planning to use the ELECT PUMP as a pressure or transfer (gravity drop), the before pump filter rating should be no larger that 10 microns. 

Then 100 microns before the carb/throttle body.

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"Planning on using a Ford VR S/C. Fab a bracket in front of the tank (57 Ranchero) for electric FP, but only have room for small inline filter. Added a return line."

Hold on a minute, Can you describe what you are wanting to do?

You're wanting to use a S/C (57 OEM setup) on a FYB but want an electric pump? Full pressure, transfer (through mechanical pump) or primer?

Be careful on the repro canister filter as I heard they leak at the canister.

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Thanks Ted and Kultulz.  Ted I should have explained more to what Iam attempting to do.  Planning on using a Ford VR S/C. Fab a bracket in front of the tank (57 Ranchero) for electric FP, but only have room for small inline filter. Added a return line.  Iam admiring  the fuel line in your pic. Those tight bends are hard to make with hand bender and make they start and stop where you want.  Kultulz   Probably will use  the repo canister type after regulator  (like real F-code).  A Motorcraft FG-851 filter might work but suspect it is 3/8  size. If in and out are (3/8") inverted (female) might  be able to use a short (5/8) of 3/8 tube for nut to center on and sweat a 5/16 into it. Sorry for long reply

" ...searching for a for a metal fuel filter with 5/16 female inverted flare in and out. Smaller the better."

Are you describing something similar to these inline canister filters, but want a metal slimline inline filter?

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Along the same thought process as John, here are a couple of pictures of a canister filter off of a 223 Ford six cylinder that’s been adapted to a Ford Y.  This particular filter has a 5/16” inverted flair on its inlet side and a 5/16” nipple on the outlet side.
 

 

Lorena, Texas (South of Waco)

Paul, as I sat in my porch swing enjoying the morning breeze, my mind must have awoken to your search.  I realized that not exactly an inliine filter, there are cannister type filters with  5/16 inverted flare ports on each side of a cannister, of which the bottom half of the canister unscrews to access a pleated paper filter about 2inches diameter and 3  inches tall (rough estimates).  I have one on one of my Y-Blocks.  I think they were used on some Ford trucks back in the day.  The replacement filter element carries a '64 part number.  I think mine came off a Y-block powered truck.  GM used that style on school buses back in the 60s, but they had 3/8 inverted flares.

John - "The Hoosier Hurricane"

Hello  Yes I have searched after market filters. Problem is making is work by adaptors makes total length  too long. Surely somebody must make one.  Thanks Paul 

Have yu tried Amazon and Ebay?  Check Summit and Jegs.  Maybe look into something like this. AN fittings, but there are adapters available

54 Victoria 312;  48 Ford Conv 302, 56 Bird 312
Forever Ford
Midland Park, NJ

Thanks John  Gave me a thought, if out and in are 5/16  od might be able to flare  (male) in and out hose barb ends.  Or compression type joint.  Might not be enough room for flaring  tool and nut though. This would be hot rodding.