As maryland stang pointed out, and as I said in my original reply, this was for a T-5 car not an auto.
If you want to check it out for yourself, knock yourself out. You can see the dyno sheet and step by step results in an old Hot Rod Magazine article titled "Bolt-On Dyno Thrash, Shooting for 300 Naturally Aspirated Rear-Wheel Horsepower" by James Lawrence.
I'm sure you could get a hold of the same article/dyno sheet if you contacted Hot Rod Magazine or did a search online. The copy I have is in Volume 6 of "The Best of Hot Rod Magazine" book series on High Performance Small Block Ford Engines.
