367 vs 410 Engines Masters

We do know this from the graph. Any shift point that drops below 5500 and the 406 has the advantage. And up to 6000 they are the same. only above 6000 is there an advantage for the 367. Go back and look at your charts and see how much time is spent below 5500 vs above 6000. Use the 4.36 gear for both to make it simple.
But they wouldn't be at the same rpm so it would depend what hp each engine was making at whatever rpm each is at. Why I showed what hp and rpm each could be possibly be at for each 5 mph, they were generally close and sometime the 410 was slightly higher others was the 367.

But basically if 2.94 vs 3.23 or 3.23 vs 3.55 or 3.55 vs 3.91 etc.. it would work out similar cause the 367 only has to turn slightly higher to be making similar hp as the 410, why we have gearing.