Tubular upper A arms
 

I've seen the prices of the 64-72 tubular upper control arms and can't see spending the asking prices for these, but I have found a set locally for $50!! They are missing the ball joints and bushings, but look to be a very nice set tubular upper control arms. Should I jump on this and just buy them? Maybe I can just clean them up and sell them on ebay and make a small profit. What's a used set worth?

Depends on the brand and what spindle they're designed for...

There's some really cheap stock-car ones that the dirt-track modifieds run that are built for the sole purpose of being cheap, that I wouldn't run on a street car.

If they're designed for stock spindles, then they're too long to use with tall spindles. The only benefit to be had by running them is additional caster that's not possible with stock arms.

If they're designed for tall spindles, then there's the question of which tall spindle... B-body spindles have more KPI (King Pin Inclination... fancy way of saying the upper balljoint is further inboard), so the arms need to be short. If they're designed for any other version of a tall spindle, they need to be a little longer than the B-body conversion arms, but not as long as a stock spindle arm...

I'd recommend these for $319 as the best value for the price... only downside is that you need to trim the bracket on the frame. http://www.scandc.com/spcarms.htm

Yea, what he said

I was about to say exactly the same thing, but Derek beat me to it. ;)