Need help with cab wiring

[swanny344]

77 K20 build put in 5.7 tbi from 88 chevy along with complete cab wiring harness with ecm,fuel fuel pump relay and fuel pump in tank. Fuel pump doesnt run and truck doesnt fire when I pour gas in carb. I dont know if Im missing something or what. Im at my wits end

 

[Snoots]

1. Go here

https://www.gmsquarebody.com/threads/1973-1991-wiring-manuals.14498/

2. Buy a voltmeter

 

[mshawn]

see if the pick coil in the distributor is sending the signal to the coil.