Okay -- here are the actual match ups:
#1 542 Chevy
#2 Stock Ford 302
#3 468 cu in w/Nitrous OWNER (Bob Broberg)
#4 347 Ford built by Gordon
#5 Cleveland
#6 429 w/gear drive
#7 460 Ford
#8 390 FE
You do miss a little in the recordings vs. being there in person. While the 390 doesn't sound as "agressive" here, it definitely sounded cool in person. I'd have to say the Cleveland also had a great sound -- but I'm guessing it has a more radical cam or something else to contribute to the sound. The 347 IS nasty sounding, but overall I liked the big blocks the best.
I hope you all had fun with this experiment, and thanks to Bob Broberg for being such a good sport!
Ben