I did a trial and error and got the white, 19 tooth cog.  The speedometer is approximately 1 mph slower.  But I think it’s because I couldn’t keep my foot steady.  I’m a happy camper.  I know little things like this annoyed me 😉

 

thanks for all the suggestions

Btw, my tires are 195/70/r14 with r200 diff.  The tires probably made some different but I don’t know what was the stock tires.  But 1 mph error margins is precise enough for me.