When SAS refused to work with Black/White/etc, you needed to put a CLASS statement in the PROC, eg
You can keep 1/2/3/4/etc for the coded Race, but put in a CLASS statement again. Then you will get what you want: compare 2 vs 1 (eg Black vs White), 3 vs 1 (eg Asian vs White), 4 vs 1 etc.
If you do not put the CLASS statement, then you are implying that there is a consistent trend in races and as the race value increases (2 to 3 to 4) the trend continues (linearly). Obviously not what you want to do with races.