Good 'ol Sizzler, been waiting for you to appear,
I think what I said is pretty black and white about the other engine builders. Frankly since you ask, you can go back to some old posts of mine and you will see that I think Dyno figures are useless for comparing motors unless you use the same dyno to compare the motors you want a comparison on. They are useful for an engine builder who likely uses the same dyno to see if his development work is moving in the right direction. They can be made to read "optimistic" numbers that can be used for advertising, and there is variation in dynos by brand and model. Also, in my case, I weigh reliable horsepower as more important than just high horsepower. Again, let me remove any perceived innuendo here:
On the Shelby block piece, I did not want to present a black and white production fact as we were given a presentation by someone who has not been at Shelby since mid-summer, and maybe their production has doubled/tripled since back then. But based on what we heard, the long term annual production figure averages out to 20 or so blocks/year. I find it interesting that we have Keith, Gessford, Southern Auto, and others building Shelby motors, but Keith must single handedly get all the production.
If I need to make any of this clearer, let me know.