TBI is a "speed density" system, meaning no mass air flow sensor, and meaning programing assumptions are made about the operating conditions such that if you change any of them (like exhaust flow, engine displacement, cam duration, etc.), you need to reprogram the assumptions in the computer.
I'll have to respectfully disagree with you, 95Z. A properly programmed TBI is superior to carb in all ways. I would not say carb is better in the long run - it may be argued that it is better in the short run (no particular skill required to get it to run with carb).
I have to say, though, that you made a poor choice for a cam. The Thumper series is all about the sound - that "old school muscle car sound", whatever that is. It doesn't have anything to do with performance. Even a skilled programmer might not be able to get TBI to run properly with that cam - but whatever compromise you'd have to make with TBI would only be worse if you put a carb on it.
There are so many good computer-friendly grinds out there, it doesn't make any sense to try to work around that cam. Ditch it would be my advice.