[MrWesson22]

I'm quite familiar with the t/as since I work at Year One. I'll have to check the numbers while I'm there tomorrow. 73 wasn't as portly as later cars, but don't forget these were still heavy cars. Just one thing to munch on - In 1970, an LS6 chevelle 454 was rated at 450hp, LS5 454 was rated at 425. In 1972, a 454 chevelle was rated at 270hp. Part of the drop was due to net vs gross ratings, but it was still down over 100hp in 2 years. GM's power dropped off even further from 72 to 73.