How much fuel can you get from a Chinese P7100 injection pump?

In this video we put a stock 210hp Weifu Pump on the bench and get a baseline for how much fuel it flows out of the box. We then make a few changes to see how how much more we can get out of it.
Link to Pump Flow Results: links.engineson...
List of Parts
-4k Gov Springs
-35lb AFC Spring
-AFC Washer
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How much do they cost and where to purchase them.

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We sell them for 1700 aud on our website