Flow reversal:
Remove the blue -4 hose for the standard return conversion. The 1/8NPT to 1/4" hose barb that threads into the regulator bypass fitting needs to be swapped out for a 1/8NPT to 5/16" hose barb. Then 5/16 in-tank hose goes on there, and straight up to the factory output hose barb. Of course I have all this stuff. So the return gets upgraded from the -4 internal stuff to 5/16(-5).
You will need my FPO fitting or equivalent type of adapter to attach the long return hose to the factory output quick connect.
For the output, open the bulkhead hole up to a -6 and put a -6 90 on there. Fuel pump goes straight out this way.
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