Quote:
Originally Posted by LIM3
Oh and what are the benefits of port matching ?
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Gasket-matching has been said to be worth a few HP, but isn't entirely necessary if a stock intake manifold is being used, since the IM ports are same size as the head ports and both are smaller than the gasket openings. If the IM has been ported and its ports match the gasket opening, then the stock head ports leave a sharp corner sticking into the flow. It is recommended to blend that in to match the gasket opening. It isn't a lot of material that gets removed.