So, here's a bit of an update.
We got the car tuned on the dyno with the current injectors and 340lph pump. The pump itself started to act odd around the 450whp mark & 12psi or boost. We're thinking it may be bad since I don't know how long the previous owner had it in the car. Also the car was previously tuned on the factory map sensor, we're already maxing it out so upgrading to a 3 bar sensor as well.
Regardless of that though, we said screw it and are just upgrading the whole fuel system now to not have to deal with it later.
End of week we'll be installing id 1050x injectors, Wahlbro 485lph pump, cj motorsports full s1.se fuel system kit and proper map sensor. Big power will come then!
Here's a video of the car on the dyno and making 450whp~.
https://youtu.be/cRut2ZIYuJ0