69 Valiant dyno numbers, and video

Baj - I wasn;t trying to belittle you and I'm sorry you seem to take it that way. I ran a chassis dyno shop for a time and we never used 28% for driveline loss. It never worked when compared to actual track figures and weight. The reason I bring it up is because the dyno can't simulate things like G forces on the fuel and fuel system, air through a scoop, etc. You're right, the number doesnt matter in the big picture if the car repeats and you want bracket wins. But it does if you are looking for validating your expense and keeping peak performance. I learned from record holding Stock Eliminator guys and if you race the gas class you know how they get. They did use a dyno for the engine to get tune info, power curve and overall output info, but the track and weather station provided the data for the log book. They could tell a piston was scuffed by running the car down the track and these were stick cars. I consistently tell customers a race car shouldn't need the hood raised once the weather and track is known and to concentrate on their own process in the car. So my apologies if I came off "dissing" you.
We simply disagree on the driveline loss. If I use the info about the driveline - an ultraglide and Dana (guessing on the rear) - the true loss through the drivetrain should be a much lower number. What does it weigh and what's been it's best speed? (I don't expect an answer...lol.) Have a great and safe season!