Need help with an original challenger r/t, asap

Yes, the car has run like this for the last year and a half or so. That is why we haven't been driving it. The timing chain and sprockets were just a noise that just happened, but the car runs exactly the same now as it did before the swap. I am suspecting that it is fuel. I just drove it and the longer you hold you foot into it, and the higher it revs, the worse it runs and the lower the fuel pressure drops. It hit close to 4.5 psi a couple times at high rpm when it was really falling on its face, plus I had about five foot of fuel hose from the carb into the cabin, so I'm sure actual pressure was much lower than what it was reading. Am I correct in assuming the problem is fuel starvation based on this?


Thanks, Will