If you enter all the pertinent information in basic settings the engine should start and run without much drama. I've installed four of them, this has been true with all of them.
The main thing is to verify the crank timing (distributor, crank trigger) is close. I would check spark with a timing light before the fuel pump is enabled to verify.
From there, a wide band tells you how to set up fuel maps. I've done them with a narrowband, but checking them afterward with a wide band the WOT is always way richer than needed. I will tune with a wide band from now on. You can switch to a narrow band sensor once the base maps are dialed. I even ran one without O2 feedback for several months (due to a strange O2 noise issue). Ran fine on the base map.