I don't know why I didn't think about this site before ... the Terlingua International Chili Championship website. Carroll Shelby and Wick Fowler were the founders ... and in addition Carroll Shelby's chili kit you can also get one for Rick Fowler's contest winning 2-Alarm Chili.
Anyway - if you want to know how to make award winning chili in TX - here are the winning TICC recipes
for the last 18 years.
And here are recipes for chili
and chili verde
and some other recipes
from the World Champions at the International Chili Society cookoff.