[VARam1500]

I haven't measured the pressure. I don't have a gauge. I'll see about borrowing one.

The first pinhole didn't worry me too much. I mean, the car is 27 years old and has the fabric lines in it. So I replaced the fabric line that popped with a new piece of fuel line. It was squirting fuel out the end of the hose where it plugs into the plastic one; ie. where it is clamped together. That's what got me wondering about the return line being possibly blocked.

The injectors in this car are dead and I've got some new ones on the way. I was hoping that I could hear it run a little bit and gauge the car's potential before I pulled and cleaned out the fuel tank.

So if I get the new injectors in, have no leaks, and measure the pressure as good, do I forget all about the return line theory? Come to think about it more, I didn't take the cap off the tank when I tried to blow the line. I'll try that. I agree with you that from a schematic drawing, it looks like you should be able to do it. Maybe that cap was my problem.