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1st Gen Ram Tech'93 & older Rams: This section is for TECHNICAL discussions only, that involve 1993 Rams and older. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
I think JET makes one. From what I recall, the gains are basically in the fact that it requires you to use a colder thermostat, then it can push the timing a little more. The sad truth about the TBI motors is that there isn't really much you can do with them in the way of power except to drive them until they poop, and then do a magnum swap.
Yeah, and with mine I don't mind how it runs now to tell the truth. I only use it for the occasional drive to and from town to work to keep it running well and for my little ranch stuff. And next summer I will use it for a lake trip once a month.