Excessive ballast resistor resistance?

I just for fun looked up a 70 Plymouth RR 383 at O'Reallys and they show an (BWD) RU-6, but I cannot find a listed spec for resistance.
I looked all over the BWD site and never found complete specs either. BTW, the BWD RU12's and RU23's are not right for this application either.

NAPA shows two, both incorrect, and both way over 1 ohm, 1 is 1.85. Christ O'mighty, what ever HAPPENED to parts in this country??
It seems less important to have specs anymore than part listings that serve the distribution chain. I have found just one parts counter guy in recent years who even had an inkling that the right ballast resistance can be important, but I don't think he knew why!