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Depends on the day!
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Pushing the plate down (doesn't matter if the key is on or off, just need pressure/FPR jumpered) will show you w/ the injectors removed if the FD is moving fuel..

Sometimes after sitting for a while you can blow things out by undoing all the fuel lines @ the dist. and pushing the air plate to WOT.. If it's working properly it will flow quite a bit of fuel, so be prepared!

I've taken apart FD'ers and the part that Usually fails (the main diaphragm) isn't such I use CIS Flowtech units. They work Great, Larry Knows what he's doing when it comes to CIS/CISE.

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