I need to connect the gas tank next. I have a Tanks, Inc poly tank with their in-tank EFI fuel pump setup. I plan to run 3/8" steel lines for both source and return. NAPA has a 25 ft coil for about $36, I haven't purchased that yet. Will put a filter in-line (any suggestions ?). My question is do I need a flexible connection at the tank and at the engine or just at the engine? I have the Ford original fuel line connectors at the engine, however the dismantlers just cut them off about 6" from the fuel rail. How do I splice onto those, or do I need to buy new ones? Enough questions for one post, tia, Tom G.
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It won't be long now, it won't be long now, it won't be long now.

Just a word of advice....the biggest failure of electric fuel pumps is debris getting caught in the impellar so make sure you have a good gause filter on the pickup tube as well as a good filter in the engine bay. As far as a flexible tube from the tank I'd say yes cause the chassis will flex and if you use hard line then it can crack.


see ya
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see ya
Pep

....I would suggest using an inline filter with threaded connections on the inlet and discharge. Many of these have inverted flare configurations, and should be easy to connect to your 3/8" lines. Plan your plumbing to make filter replacement an easy task.

....You should not need a flexible connection at the tank if the lines are clamped in place. Just allow a means of removing the pump or sending unit without having to cut the lines.

....Sorry, I can not help with your question about the engine connections.

I suggest mounting the inline filter along the inside of the frame rail and NOT in the engine bay.
EFI systems are under high pressure and most late model cars have the filter under the car to
avoid spillage or leaks in the hot engine compartment.
Street & Performance make a nice polished aluminum filter mount that accepts a standard GM
EFI filter used in early 90's Chevy Suburbans & other GM light trucks. The filter mount can be
ordered with different types of fittings depending on the type of line you're running.

Hope this helps! Ed
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Hotrods forever...

I thought I would include this link for you to look over before you start the plumbing. I think it is one of the best generic outlines for fuel systems, either EFI or carbs. I know it is pretty basic but someone may find it useful.
http://www.centuryperformance.com/fuel.asp

I do have a thing about maintenance access and trying to avoid potential failures. The modern cars seem to go with these imersed pumps in the tank. There is not much thought if the pump fails...and they do!. Access to the pump is near impossible and in some instances and may require the tank to be removed.! There are ways the old roadside mechanic can overcome a carby/mechanical pump failure, but EFI...you go no where, and can't do a thing about it but get it towed. My 37 will be EFI but will have an external pump, and as I mentioned in my previous post, will have a good gause filter on the pick up tube. The main, finer filter will be in the engine bay (EFI type), and as Bruce pointed out, will have an AN type connection, but my research indicates that it mainly required on the inlet side, thats subjected to higher pressures. The outlet can just be clamped, but use the high pressure flexible hose suited for EFI fuel lines. The article that Mike directed you to seems to support the filter placement as I mentioned but if room is a concern and you have no option but locate it under the car, then I suggest some form of shield to protect it from debris thrown up under the car and punturing the filter...they are a fairly big target.


see ya
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see ya
Pep