Does the 7.3 di have a fuel screw you can turn up on the fuel pump like my idi? To make it dump in more fuel?

 

No it does not. It has a schrader valve on the fpr, you can check the pressure there. If its below 50, you can do the bb mod, the ideal pressure is around 65-70.

 

The fuel screw on your IDI is increasing the fuel out put of the DB pump. Our PSDs do not technically have an "injection pump", but each single fuel injector is almost a mini injection pump and the injectors are electronically actuated.. The fuel pressure that we are providing is just to ensure adequate fuel get's too the injectors and doesn't massively change the fueling characteristics of the injectors.

If you want more fuel output, it must be done via programming the PCM.. Whether that be with a programmer or a selectable chip.