Correct, Em. A look under the hood of a '56 and you see a four barrel, it's a "power pack" 283. In '57 you could get throttle-body fuel injection.

Please be advised that these are words from an old goat who never was a Chevy guy.

The first time my '56 Dodge D500 was beaten on a drag strip it was by an injected '57. In my dreams I can still see those damn pointy '57 Chevy rear fenders going past me.

I take comfort in the fact that he "had inches" on me ....... 327 to my 315 Dodge hemi.

Jim