Hello all, I’m working on a large project and fear I may have bitten off more than I can chew. I’m taking a 2011 crown Vic P71, removing the body, and setting a 62 F100 unibody on the chassis. As of now I have the entire body off of the crown Vic and things were going ok. I thinned out the body harness to just essential run/drive components. I hooked the harness back up to the rolling chassis to confirm it still runs and I have no ignition or fuel. The questions I have are as follows

would it be possible to just get a plug and play Holley system? I know it’s been done but I have no idea where to start. All I know is that I would have to swap to a mechanical throttle body

From what I’ve seen the fuel system is returnless? And just regulates the fuel pressure by changing voltage to the pump. How would this work with changing to a fuel cell?

Any input is greatly appreciated