Working on a mostly stock SBF for my 1936 Ford truck project. I have a different pair of stock heads that are supposed to flow better than the E7's currently on it. The performance intake manifold has a port size of 2" x 1.2" which seems to be the standard size for most performance manifolds. These heads have intake ports that measure 1.870" x 1.160" and most of the stock gaskets come with 1.96" x 1.16" openings. Not planning on doing any port work on the heads as everything I read says the small gain isnt worth the effort and to just buy aftermarket aluminum heads if your chasing hp. My question is if its worth taking the time to port match the heads to the manifold and would it gain anything. Logic seems that you would want a smooth transition thru the entire runner, but the runner in the head is smaller. Port matching would basically create a smoother "funnel" at the gasket area as it transitions to the smaller head runner area. I am guessing the engine may be in the 275hp range when finished, so nothing crazy.