Your ultimate choice for single carburetor application used on the very popular HP 500 from Mercury.

Dart intake manifolds incorporate sophisticated wet-flow technology developed successfully. They don't make "universal" manifolds. Every Dart intake is engineered for a specific cylinder head, block and carburetor combination. This means that they've optimized the port shape, the plenum volumes, and the runner angle for each application. In numerous dyno tests we've yet to witness any manifold with as flat a torque curve as these. Note: Merlin intakes offer optional brass water jacket.