I had a 12.7:1 in my 67 SS from AGR and really liked it. Couldn't 'one-finger' it as it was a bit stiffer than whatever stock was but it was solid, firm, and quick. http://www.powersteering.com/products/ can rebuild yours for the same 12.7:1 ratio for $249.
Dale McIntosh 67 El Camino 1966/67 Chevelle Reference CD! http://www.chevellecd.com ACES #1709/TC Gold #92
