What does your fuel pressure look like under load? What do AFR's look like under load?
Not trying to be rude, but it seems like you don't know how these pumps work. The pre-pump sock/screen is indeed easy to clean, but the post pump filter is sealed into the plastic housing and is nearly impossible to remove and clean (if you've somehow done this I'd love to see pictures). Blowing air through it will not clean it... it will just move the restriction around. Flow testing a pump assembly at pressure will tell the tale, and I recommend you do that; it's not particularly difficult.I stated in my original post I cleaned screen and blew out pump filter. I completely tore pump assembly down. Issue definitely isn't a dirty filter. You're right tho pump pressure could vary from bike on stand and bike under load. I'm ordering stick coils and a pump and starting there.