That's good you improved!
What are you 60 fts?
How much boost are you getting now?
Did the stiffer wastegate spring help?
Did your larger tires help w/traction?

It looks like(on the video) you are not spinning the tires & you are not getting boost very fast?

Not sure why your FP is dropping,bad regulator?
Your FP should not drop ,even if you are 100% duty cycle on your injectors.

What micron filters are you running before & after your fuel pump? Are you running an external pump?
How about your fuel pick up in your gas tank? Original sock still there?
Pick up still in stock location?
Do you have a full tank of gas, 1/2, 1/4 ???

I thought you have bigger injectors ready to install?

If you do,, you have to retune all over again.

MBHD


12 port SDS EFI