![]() This is the reason we get good gains in power with modifications to the intake and exhaust (carbs and pipes) if the right parts are used. If we're talking about Harleys, lets face it, our beloved V-twin is not a technological marvel. ![]() ![]() "porting the heads will be a compliment to the other performance parts that are installed." All the formulas I have learned are true and the words from the dude that taught me how to port, "Engines run on math" is also true. In those years I have found that the majority of the motorcycles that were used on the street did not benefit from heads with the larger valves or what I thought was my best port design. Over the last 15 years I have used many different combinations of components and port designs in the quest for the best flow numbers while keeping port velocity up. ![]() Big Boyz Head Porting is taking a different approach to Harley-Davidson HEAD PORTING.
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