2 barrel , 4 barrel, whose got the answer?

rumblefish360 said

As long as the go pedal isn’t pressed hard or often…… LOL

As 318WR said, tunning the set up is key to how it runs, so, the car was subject to constant tuning between the distributor timing and jetting of the carb. Also pay attention to the pump shot amount. Use only as much as the engine needs. Jet it on the lean side. (Lean for winter. It’ll richer up slightly for the summer. Air molecule expansion, and contraction due to the temperatures.)

Keeping your foot out of it will net good mileage results.
Sometimes, depending on the 2bbl, the 4bbl can have smaller primaries.

Click to expand...

i'll brook no dissent, but again... results not typical because *nobody* puts the time and effort into tuning their set ups-- or has the skill and understanding to do so.

at any rate, a well thought out and tuned 4bbl set up can and will absolutely return fantastic results. but most people either cheap out or only go half measures here.

and as you note, driving style (and terrain) play a huge factor in the grand scheme of things.

also, he's got a van with 3.55's and massive tires. so eeking out a few mpg might be a moot point. not saying it's impossible, but just less likely is all.