So I'm looking for a fuel pressure regulator that can go low, as my Weber takes a 3.5psi maximum fuel pressure. Everything I can find is either cheap (and from reviews, basically come with leaks) or in the $150+ range. How has this happened? shouldn't there be 11ty million regulators out there that would work with a Weber?
This has been the leader so far, mostly because you can dismantle it to fix it. 
sobe_death wrote: How has this happened? shouldn't there be 11ty million regulators out there that would work with a Weber?
Fuel injection. Most cars now have it, and need high pressure regulators.
Look at one of the chain auto parts stores that shelves a lot of parts for good old 'Merican cars, like Auto Zone, or Advance Auto.
Those things suck!
We went through about 4 of them in one weekend on our Lemons car. We had the stock engine driven fuel pump on the car and that regulator would only regulate down to 6 psi. After a while, the regulator would not hold a steady fuel pressure. We would have to adjust it every time we fueled the car up. It would go lower and lower throughout the day until it would flow almost nothing.
We took the regulator off and ended up running a "T" connector and a hose back to the tank. We adjusted the pressure by closing or opening a valve we incorporated into the hose going back to the tank.
Rob R.
Get one of these, much better than the Mr. Gasket one. http://www.summitracing.com/parts/HLY-12-804/
That looks good.
I can't believe I didn't think of using a ball-valve as a regulator before now! I'd have to run a return line, but I will eventually be doing that anyway when I go FI
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