TBI was designed as a Band-Aid fix to transition from carburetors to port fuel injection 30 years ago. It's marginally better than carburetion, but it's hardly worth wasting a lot of time trying to adapt it to an engine with siamesed intake ports that can't be readily adapted to any sort of cylinder-specific sequential port injection. I think I'd rather spend my time designing some sort of intake manifold modification that might get a port-type injector aimed at the back of each intake valve if my intention was to upgrade to computerized fuel injection and ignition timing. At some point, it's sort of like putting lipstick on a pig- - - -not very practical for the effort involved.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!