You can check out my other video of my bike's issue. After a lot of searching and watching other peoples videos/talking to other riders, I've replaced my fuel pump, and I think it solved the problem! Hits the Rev limiter no problem now.

Video of my problem:    • 2003 Kawasaki Z1000 weird electrical ...  

After much pain, I discovered this fuel pump kit fit my bike perfectly, despite saying it's for the GSXR bikes.

Model # HFP-384-UR2T4 from Quantum Fuel Supplies