FiTech EFI system

I am not utilizing the timing control on my fitech but have had a terrible time with my msd pro billet distributor. I'm running a factory distributor right now because my msd is unreliable. Pretty much rebuilt it with no change in out come. Anyone else having msd distributor problems? Sorry for cutting in on this thread but I'm just trying to figure out why it won't work. FiTech is awesome and has greatly changed the drivabilty of my car.