your a funny man that has read way to many hotrod &chevy books..and Im sure you have forgotten more than I will ever know.in your drems.:prayer::prayer::prayer:or did you get that off the TV the speed ch.I bet.they did a comparison on them with the RR.up in smoke ya that's were you got it.so unless you have worked or owened a deler ship back then.mybe you should cheak out the fackes or talk to someone that has owened one from new...........sir!!!!!!!!!!!!!!!!!!!!!!!!..:thumblef::thumblef::thumblef::thumblef::thumblef::thumblef:....I will not try to explain anything to ya again......sorry........Artie