'65 Mustang Hi-po vs '65 Formula S

BTW, you have to read these old road tests with some skepticism. There's an old Car and Driver or Road and Track (can't remember which) comparison between a 289 hi-po Mustang and a 273 Commando Barracuda. They had the Commando 273 being no faster than a 273 2-barrel, and the Mustang running the quarter almost THREE seconds faster.

And then there's Motor Trend's test of a 58 Chrysler 300 with a 375 hp 392 and Torqueflite showing it being slower than their own earlier test of a 55 Chrysler 300 with a 300 hp 331 Hemi and two-speed Powerflite trans. (17.9 vs. 17.5)

The 67 383 Barracuda tested by Super Stock and Drag Illustrated was half a second quicker in the quarter than any other magazine's 383 A body because they shifted its Torqueflite manually instead of leaving it in drive and letting it upshift at just over 4,000 rpm.

I could go on, because there are plenty of other examples . . . .