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Power Strokes
6.0 Aftermarket
6.4 hfcm harness
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[QUOTE="04cr450, post: 857847, member: 12074"] the 6.4 pump I mounted on the frame like the 6.0 pump... 1/2" fuel line from the sump to inlet and outlet of 6.4 pump- then ties into the 6.0 hfcm(you need a efi 1/2"male to 3/8" fitting). Then on the return- from the 6.0 hfcm use a 5/16" efi fitting to 3/8" male and run 3/8" fuel line to the return side of 6.4 hfcm which is 3/8" inlet and outlet. From the 6.4 return, run to the top of tank/fuel sender on the 3/8" line(which was the supply feed factory). Cap the 5/16" line (which was the stock return u don't need this anymore)... On the inside of tank I took the 3/8" draw straw(which is now your return) and bent it at a 45* angle pointing it towards the front of tank with an added 8" piece of fuel line so the fuel being returned wont effect the sump/supply feed. Its a good setup so far. [/QUOTE]
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6.4 hfcm harness
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