Yea I did figure out. For me it was a couple of factors.
1- The "new" fuel pump was no good. Brand new and only lasted 6 monthes
2- There was a voltage drop at the pump
3- Im using an ls1 gas tank. Turns out theres a built in regulator thats intank that needed to be removed.
After addressing all of these issues the problem it gone and the power is back. I now have a fuel pressure and A/F gauge in the car.