Carb question stock 340

The Holley is way more user friendly to tune (and learn to tune) than an afb/Avs style carburetor IMO. Your friend is correct in the “bolt on and go” aspect of the edlebrock though. If you are uninterested in learning how to tune and want to just slap one on (and don’t care about the power you’re loosing) you made a good choice. I’ll also add that the Holley could be dialed in to get the same mileage as the edlebrock. Just takes effort.