[olddog]

Quite a few years back, I stumbled onto a Ford dyno test of a race 289 back in the 60's. I don't remember much of any of the details, but it seems they were getting about 450 hp.

Now we have learned a lot since then, but the dyno math has changed (1960's showed more power than today). I don't know if these two cancel each other out or not. I think I will error on the side that knowledge has grown more than the difference on Hp calculations.

So I will take a wild guess at 475 hp at 7500 rpm and 380 torque at 5000.