5.7 harness modification

[Oldpos]

I have a 1998 vortec 5.7 with Holley 4 barrel 4175 series electric choke that I just rebuilt the engine and carb, it will have a alpha one gen two drive going in my pontoon. The harness I have was severely hacked so I am going to build a new one from the remnants of the old one. My engine does not have a provision for a mechanical fuel pump, the harness was for a mech fuel pump , thunderbolt iv ignition system. I am ditching the 27 year old system and installing the delco voyager system. Can somebody please look over this schematic I drew to see IF I am going to wire it all in correctly?

 

[Scott06]

I think you are missing a jumper between the purple to supply fuel pump. It should get power off the starter during cranking , and also have a parallel supply off the purple that goes through oil pressure switch once it is running. Starter wire to fuel pump doesnt go through oil pressure switch only the parallel supply iff the purple does.

Shown on 5&6 in this drawing

https://www.pinterest.com/pin/363947213646390942/

 

[Oldpos]

I think you are missing a jumper between the purple to supply fuel pump. It should get power off the starter during cranking , and also have a parallel supply off the purple that goes through oil pressure switch once it is running. Starter wire to fuel pump doesnt go through oil pressure switch only the parallel supply iff the purple does.

Shown on 5&6 in this drawing

https://www.pinterest.com/pin/363947213646390942/

Thanks I didn’t catch that

 

[Rick Stephens]

A simpler diagram of the fuel wiring: