As one option, building your own pop tester is not all that difficult and it opens up lots of potential options.

When I was having apparent trouble with a rough idle, I got a set of new Monarks to rebuild the injectors in my spare engine. I couldn't get them balanced using the shims I had on hand so I picked up a set of 5 injectors at the junk yard at half price day ($2.50 ea) intending to just use the shims and I pop tested them before rebuilding and they turned out to be perfect as is - popped at the right pressure with great pattern. (The rough idle turned out to be motor mounts so the originals were good too.) And the rebuilt ones with the Monark nozzles will be fine as soon as I get the right shims.

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Current Stable

• 380SL (diesel)
• Corvette C5
• Manx
• Baja Bug
• F350 Powerstroke
• Auburn Boattail Speedster replica