F1 Steering Conversion

[Mike34]

I’ve read here and there about conversions to a 48-52 F1 steering box. I’m wondering what the design is that makes it a desirable choice. Is the F1 steering a worm and roller design and what is the ratio?

I’ve put this question on the early V8 site but thought I’d add it here too because somewhat common on Model A’s.

Thanks,
-Mike