I have 4:10 gears in the truck and Im running about 3000 rpm at freeway speeds (65-70). Most of my driving is back road highway and I cruise along at 55. The faster I go that needle will drop. Strictly freeway speeds it drops down to around 15, and towing my travel trailer drops to around 12. I am currently researching a re curve for the distributor and future plans for a 5 speed. Im not saying this mileage is the norm as I am still surprised. I think with proper tuning and gearing, a 292 could be made into a great runner for Toms 41. The point I was trying to make was that because a lot of people have said 292 are gas hogs, its not always the case if you search for a better combo. Your mileage may vary
