intake manifold for Minarelli vertical IP21184 fitting for Adly/Herchee PT50 50 ,

101 Octane intake manifold for Minarelli Engines with vertical cylinder. As a result of thermal loading, tears can occur in the intake manifold and they can become porous. This means it’s time to replace it. Tears often mean blow-though, which leans out the engine mixture. The result is higher combustions temperatures, noisy running and a loss of performance.