904 to 727 conversion crossmember

Because it was 1970. Things and materials have changed a lot in 47 years.

Your buddies and trans guy sound like the type that will also tell you that you can't or shouldn't use a converter that's over a 3000 stall on the street too. Totally wrong also.
So lighter would be better in a drag car, which it's not. Faster, that all depends on a lot of other things other than the transmission and again it's not a drag car. And then there's cheaper, isn't there a saying you get what you pay for? I'm not about cheap, I'm about stronger and handling the power. Thanks for your input, but insulting the people I know doesn't make me want to listen to you.