JS72D -- Firm Feel advertises 12:1. However, I've also read from other sources 12.7:1. I recall reading that the typical fast ratio 2nd gen GMs (Camaros, FBirds, as well as the C'Vettes of that era) were 12.4:1... and I've driven them and their steering was fast... faster than my T/A setup).
I had a good handling '76 Camaro. I had an '86 IROC 12.7 to 1 steering box in it and can say that the steering response was pretty good. I have a Firm Feel stage 3 with FR arms in my '70 Charger. I like it but I'd like to drive my old Camaro and this Charger back to back to see which felt the best to me.
