I have two customers with ootb Holley's that work fine. And that's a good thing because beyond connecting fuel and a Direct Fit throttle cable they haven't a clue.
I teach them how to set the float and I show them how to set the idle and I show them how to adjust and set their choke and I show them how to adjust the air bleeds and for what reasons. I just tell them how the secondary spring works and how different Springs change how it works. I explained to them how the accelerator pump works and generally get that glazed look from them when I'm done explaining... it's information overload and they just want it to run good then pay me and drive off.... That amount of adjustability is wasted on most....
