There are a few threads listing some known workable distributors, so we have those to check out.
I'm trying to determine if some of the ones we sell (MSD Pro-Billet and MSD Ready-to-Run types) are compatible so that we can at least list them on our site as such, and link the FiTech systems to them as well.
If the one you originally linked to has a 2-wire pickup (not including any ground wires) then it might actually work with the timing control. Helps a lot if the distributor you choose has a built-in way to lock out the advance mechanisms, but in lieu of it being that way from the factory, just about any distributor can be locked out if you are clever.
FiTech says it needs to be a 2-wire though, such as some MSD units with the purple and orange wire configuration, or Ford Dura Spark (although they say the Ford setup is not compatible for some reason) or similar.
I'm still not sure why the Ford would not be compatible, because as far as I can tell, the MSD units that have two wires are actually using a Ford Dura Spark pickup under the cap!
I do think someone here has a working FiTech/Dura Spark setup, but don't remember who.
Anyway, you can check the details of the one linked to previously to see if it's got the proper connections.
A typical "HEI" setup with the big GM style cap is not compatible because it has only one wire outside of the distributor. There is probably some way to fiddle with the innards to get it to work, but might be more work than it's worth, just to be able to deal with that big honkin' cap anyway.
Seems like, off the top of my head, an MSD Ready-to-Run setup might be the ticket. FiTech has recommendations, so probably on their site or on their user forum (facebook?) pages.
Good luck.
Paul