Hey everyone, I just got the 350 dropped in today and now I'm moving onto the fuel system, coming from a 2.8 mpfi. I've replaced the in-tank pump with a section of hose,which leaves me with some questions.

The factory hardlines run from the tank to the driver's side of the engine bay and I'd like to keep them there if I could. What I plan on doing is removing the old fuel filter (in the feed line, 3/8") thats right outside the tank with this Summit inline filter. The feedline has 2 male fittings that screw into the original filter, but the Summit filter has male fittings, so I'm thinking i need to use 2 Earl's -6 AN to 3/8" fittings in order for it all to come together. Does this sound right?

Now up in the engine bay I want to run the feed and return from their stock location, down across the front of the k member, and to the fuel pump (mechanical). I have aluminum line that I can use, will it work and what fittings would I need (feed 3/8", return 5/16"(?)) to get this done?

From the pump I was thinking of running a hardline to another filter (smaller microns?) and then hose to the carb (Holley single feed 4160). Would this work too or should I step up to braided here to make it easier?

I know theres a lot of questions, but I'd really appreciate anyones help. It nice being this close to being done but I want it finished!


cj

 

Your making this way to complex...
1st off you don't need a return line, trash all that stuff and cap of the tank.

You've got a 3/8" pick-up now in the tank right?

If it has the basic steel tube nipple coming out of the top of the tank you use a 3/8 Compression to AN Male adaptor, then run -06 AN SS Braided or the new black woven covered fuel line straight to a Carter or Holley Mechanical pump.

From the pump to the carb use a -06 line with a billet screen type filter and connect to the carb.
{Edited by Moderator}

I would suggest you get a real carb for that engine and a proper distributor curved to your combination, you've spent a lot of $$$$$ why not finish it off right so you can enjoy the full potential of your investment.

{Edited by Moderator}

 

Hard line per the sticky at the top of the forum probably would have been better for the pick-up, but no big deal.

I wouldn't replace the factory filter with the one you linked. Just keep the factory filter, or put a piece of line in its place. Unless you didn't put a pickup sock on, in which case some sort of screen to protect the fuel pump would be a good idea.

Personally, I would run a return whenever possible. It may not be "necessary", but it can be a big help to avoid vapor lock in hot stop & go conditions. I'm running a Carter M6626 fuel pump, which is a mechanical block mount with stock-type feed and return lines. With stock V6 lines from the tank to the engine compartment, I ran new fuel lines across the front cross member just as you described (3/8" & 5/16", aluminum tubing), using some tie wrap mount buttons that push into 1/4" holes to keep them in place. I don't have any photos, but it sounds like you are on the right track.