[Richard L]

Thanks for the update.

I don't think you need to put another line on the inlet side of pump. The in-tank-filter should do the job properly.

It is good to know the system is now free of possible debris.

The job of the restrictor is make the delivery as linear as possible. The FAV is capable of delievry in ezcess of 1500cc/min. Without the restrictor, the valve tends to over inject by about 50-10% at the lower end of the flow curve. It is not important if you don't start spraying at 12% IDC.

Quick calculation of your set up:

2520cc/min of fuel at 25psi,. 20% of M50:50 flow should be ~500cc/min. Your selection of 0.9mm jet and 0.7mm restrictor is spot on.