Th350 causing degraded performance of 5.3/6.0
Im still in the planning stages of my tj engine swap and I intended on running a th350, 5.3 combo. According to novaks website it is pretty straight forward but when I called them to confirm the adaptability they strongly discouraged using that tranny because it would cause the engine to run less optimally. My question for all of you is how would the th350 be any different than a manual tranny as far as the engine is concerned as long as the reflashed ecu is matched correctly? If it does effect the engine adversely would it be in terms of fuel efficiency or performance or both? Input from those running this setup or something similar would be great. I apologize in advance if this isn't considered "hardcore," I wasn't sure where to start this thread.