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I second Jerry on the Fram filter, I was going to use one but changed my mind once I saw it, I have no confidence in it. If you're going to modify your tank, you could cut a big hole in it and use a fill plate from ATL or Fuel Safe. There are advantages aside from being able to use big supply and return fittings, you could then fit a surge tank in it or some foam. It would be nice to at least have some baffeling if you didn't use a proper surge tank but if you're using a mechanical pump and carb, fuel starvation isn't nearly the threat it would be if you had fuel injection. You could also order a custom fuel cell, ATL or Fuel Safe has probably already done some for ERA's and I would guess about $1500 or so. If you go with a fuel cell, call ATL and give them dimensions, then place the order thru a dealer, I used Racecar Engineering, it was easy but takes some weeks to make a custom. There's one aspect of a fuel supply that has benefits well beyond the biggest line, pump or filter. That's having a return line. With a return line you can use a pump that puts out 15 psi, the regulator (actully a relief valve) is always sending excess fuel back to the tank. Since fuel is always moving thru the lines, it's less likely to have have a problem pulling fuel from the tank during cornering and engine requirement changes. A good place to put the regulator is at the rear of a fuel log, that way fuel is always flowing thru the log. If you start making brackets for 2 -8 lines side by side, remember to leave enough space to fit a wrench. I used -8 metal lines along the bottom of my car mounted to brackets cut from aluminum angle stock. Let me know if you want pictures and I'll put some in my gallery.
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