So, I may have some additional data for this in a week or so as I'm taking out the AOD and putting the T56 back in the car. The motor will be untouched and I'll be back on the same chassis dyno. according to just about every theory out there we should see more RWHP through the clutch and stick vs. the converter and automatic.

This will precede a carb to efi swap using an identical manifold and a 4500 style throttle body vs. the dominator carb so that will be interesting as well.

This doesn't address MauriSSip's question but I'm not sure I can. Based on two cars I know well this particular Mustang chassis dyno seems to tkae 37-39% driveline loss.

For comparison the GTO saw 1000 rpm slippage on the dyno ves. 500-600 typically at the track again using stnadrad formulas. On the dyno we had crank speed measured optically compared to wheel speed on the rollers in 3rd gear so we know what difference is with the way the dyno loads the car. We'd need a wheel speed sensor and data logging to have actual track data which neither of us have currently. I will be able to add that soon with the Innovate LM-1. More quater mile lap= more data. Eventullay I may actually learn something.
[addsig]