318 MAX fuel economy builds?

I agree 1000% on running a TQ.
These are a couple of examples I've had about Holley vs TQ.
At one time I bought a new Holley #1850. My mileage TANKED. This was on my 76 Charger SE. W/a 318.
My brother bought an 80 ram charger w/a 360 around the same time. Someone had replaced the original TQ in that one with a Holley 1850. And for some hair brained stupid reason they subbed in a point distributor in place of the factory electronic. We couldn't get that thing to pass smog for anything. I found a couple of TQs and a factory electric dist for my brother's, tweaked them out, and both his and mine mileage went way up and strangely now his ram charger passed smog with flying colors besides
(He lived a couple of towns away, just across the county line, I still lived at home where we didn't have to deal with smog)