Wanted to add that if the OP has the stock engine for his 210 with just a swapped head then he would have the smog cam as well. The mid 70's cam is a better one. Every mid 70's B210's I've looked at that had an A14 were rated on the tag as having 80 hp at 6000. The "nifty fifty" high mpg cars were rated less.
I believe you want the early points distributor as well....better curve.
Of course this is just the "we cheeeeep" option.