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I agree with everything stated above except for the 70 340 package cars. I don't know much about them so I won't make any conclusions.
As far as the car that has all the Rallye equipment but doesn't have the A57 code on the fender tag...Are you sure it's all origonal? Does it have the louvers on the front fenders? [/quote]
Yes, it has all that, too. Rallye cluster with the (N85) Tach. on the fender tag. I guess, you could just call it a 340 Challenger but, it's still a true Rallye car, in my mind.
Original duel exhaust, with the cut out's on the rear valence, sway bar's, all that... I've seen several A57 318 Challenger's, with no duel exhaust. I didn't notice, if they had rear sway bar's or not. In 73-74, it came down to this, A57 is a dress up package, that is all. Plymouth did the same thing with the Cuda'in those year's but, still had the BS, instead of the BH, on the fender tag. Those Rallye and Cuda' code's for 73-74 never gauranteed anything hotter, than a plain old 318. Seems just wrong, huh?
I'm just glad, I have a real 340 car. Not having A57 on my tag doesn't bother me. Now, if I had A57 on my tag, with a "G or E44"318 to boot, I think I would have to change out my power plant. Only my opinion, that's what makes the world go around.