Yes, it looks like the right ones for a 91-92 and for a 93-94 you just don't use that brass piece..
That brass piece I have circled is about 1/4" to 1/2" or so deeper than the fitting I have on our X now. Here is the pic of the fitting on our X (taken from post above)..
You can see that I have it pulled out some (so you can see all 3 fittings) but with the brass piece it would stick out through the mount a little longer than what I have now (or factory)
I can't tell for sure, but the procomp lines in the link above "look" like they might actually be lines from Earles which is what we use (Earls is a division of Holley). I know the fittings are from Earles as that is where I got mine from.
~Mark