Both systems work OK, however, the TBI systems are cheaper, simpler, make less horsepower, and don't get as good fuel mileage. The timed vs. untimed(drooler) systems don't seem to make a whole lot of difference in the long run, and if you have a siamese port engine, i. e. stock head Chevy or GMC, the timing doesn't make any difference like you said.

It will be useful to see how the new system that Wayne is using works out, especially on a stock head engine. I think there are enough people out there that some volume savings might occur.

Ed Pruss
Longmont, CO