ORIGINAL: wallstreetman
Look at the books of past muscle cars and you will notice that most stopped at 425 HP, this was for insurance purposes. A 426 Hemi that was rated at 425 HP actually put out 512 HP.
There was a show a while back, think it may have been
SPEED channel where they dyno'd some of the old muscle V-8's. All seemed to be understated by the factories but the Mopars were
WAY understated. Some of the original equipped Mopars were producing close to 800 HP as I recall. Far more than the Chebys and Ferds of the day... BTW...
Guess that's why I catch myself grinning whenever I see talk of the SRT8 6.1 putting out the same HP as the old 426 HEMI... just makes me grin... marketing is a funny thing.