Flaming River and PST Fast ratio kit?

So I was wondering if it is ok to install the Flaming River quick Ratio steering box with the PST Fast Ratio steering kit?

Just wondering if this would be twitchy, hate to sneeze and run off the road :oops:

Header clearance should not be an issue as I will not be running headers. Single pipe exhaust, slant six, four speed.

I have the Flaming River steering box already and I have everything for a disc brake swap. I am sourcing parts now for replacing and upgrading steering and suspension components.

Any feed back is much appreciated.

Mike