PORT VOLUME-IS BIGGER BETTER OR IS LARGER LESS? Richard Holdener

There’s a reason hidden here why 351 Cleveland’s and 426 Hemis were dogs on the street.
only the 4v cleveland, they had 460 sized ports and valves. the 2v motor was much better in both respects, only they lumbered it with with too big a chamber which dropped compression. most aftermarket cleveland heads have 2v based ports/valves with 4v based closed chambers giving the best of both.
neil.