Hank, dyno's don't like to work below 2500 for some reason, most shops don't even go that low. They are looking for peak HP and most don't care about torque. This group of tests is about as good as gets. Sounds like each piece was given a fair chance to perform in a bolt on situation. Sure tuning might get a bit more power, but they didn't have time and the end user of the said product can do that for them self.

Your right about the off idle torque of the 292. Back when I was racing Pontiac's my 455 broke the block so I threw the heads, intake system, and cam into a 400 block. Other then cubic inches, they were just the same. The 455 would et quicker due to off the line torque, but the 400 would out mph it due to rpm. I would bet the 292 and 250 will act just the same. The 250 will make more hp at higher rpm, but the 292 will make more torque across the board.

This will be a true case of bolt on side by side tests.

Joe