Hamish Posted November 18, 2020 Share Posted November 18, 2020 I had cause to take the carbs and manifold off my TR3a and took these pics of 2 inlets and an exhaust port. when gas flowing are the valve guides trimmed to the profile of the whole port ? Or is it needed as a set length to aid sealing ? or not matter as the valve stem is there anyway ? Link to comment Share on other sites More sharing options...
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