Steering Box: Is this a Fast Ratio 12:1 Box?

[Brandon]

My '69 Camaro came with a new power steering gear box installed (It is painted and has AN fittings and braided hoses to the PS pump). I cannot tell if it is a fast ratio box. It goes about 2.25 - 2.50 turns lock-to-lock. It feels stiff and changes lanes with only a slight bit of steering input.

I am changing headers this weekend and this is a great opportunity to swap an "Iroc" box in if mine is a stock unit. How can I truely tell what's in my car?

Thanks,
Brandon

[6'9"Witha69]

That few turns lock to lock usually indicates a 12:1 ish box. 18:1 is like 3.5 turns. My box is 12:1 and is about 2.25 turns, same steering response you are talking about too. If you like the way it feels, leave it as the IROC box is not the greatest.