efi fuel return line plumbing

rickMember

I currently a bottom feed from Dennis Q using -8 lines to a 100mc prefilter to a Holley 150 putting out 7psi through -6 to 10mc post fileter to a Demon 850 (I'd asked my engine builder for a 750). I'm thinking about switching to a FITECH Meanstreat EFI unit. This requires a return line. I have the later style outside fuel filler neck. My current fuel lines and filters were built with 300psi fuel lines so I'm half done there. It's all basically new. The motor is a 402ci, chi heads, roller rockers/lifters, and in theory does 632hp on the engine dyno per the dyno sheet.

How and where to people tend to tie in a return line? I'm not overly mechanical so please be detailed. Basically I'm trying to plan out everything prior to ordering parts I don't need...

thanks Rick

7/9/174:40 PM

Original Post

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