So, I finally got my fuel pressure test kit and hooked it up. With the pump on, pressure in rail shoots to 60psi. Turn off the pump, and it drops to 20psi and holds, which is about where it should be with the regulator turned all the way out like it is.
I unhooked the return line and ran it into a bucket, same result, so the restriction is in the rail. Yippee.
I won an auction for another rail assembly last night. $23.50. Hopefully it isn't all full of crap like this one was.
On the bright side, the Datsun has been running beautifully. No smoke, good fuel mileage, though I can't tell exactly how good since the speedometer doesn't work. derp.
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