AFI Fuel Pump fitting question

[Charles in SC]

I seem to remember reading somewhere here that there was a service bulletin or something about a fitting on the AFI pump setup needing to be stainless.Is this correct. I have done some searches and come up empty handed.
Thanks in advance!

 

[DanH]

Possibly thinking of the SB to replace a nipple between the purge valve and the flow divider? See the home page at www.airflowperformance.com