I am going to throw out my personal opinion on this subject since it seems to come up a lot lately. WHO CARES!!!!!! Does it really matter what factory makes them? They are all built to the designers specs and that is what really matters. They are all made in Taiwan, they are all new engines on the scene and they are all fighting for respect in the market place against stiff and well established competition. I really have no idea if they are all made in the same factory but it is obvious that they all get their carbs from the same manufacturer and that is probably where all this talk comes from. I have seen all of them (except perciprocate) run and they are all very respectable race engines. So rather than dog each other or worry about what street in Taiwan this motor or that motor is produced on, lets band together and let the race world know that Taiwan can build very respectable race engines that perform very well without draining your race budget for the whole season.

Just my .02 cents, not that anyone cares.