[Cobra #3170]

I will undoubtably regret this but:

600 hp with Webers on a 427 in the 60's "the impossible dream"
Every dyno sheet I have ever seen and I have looked at quite a few show maximum power in the 550 range and that was a 427 Tunnel Port with 15 to 1 pistons with Daytona cam and dual 4 barrels on a single plane manifold. Certainly not a road race set up. The dyno sheets were from the Dearborn engine lab and thus accurate, as compared to other less reliable sources.

How did you get to 2150 for a Cobra with an all aluminum 390 vs a Cobra with a 427 iron block high riser probably more like 2250

Cheetah going 215 on a closed course, again how? Poor aero, not enough HP and poor exit speed because of handling issues.

I watched a Cheetah in a road race on the west coast (Santa Barbara Airport I think) a loooong time ago, it went like hell up the straight but was so bad in the corners that a 289 Cobra hammered it.

For the record I wanted to buy a Cheetah in the 60's because I was a died in the wool chevy guy, I could not get one, so went to the Cobra instead.