Originally Posted by Paul Kane
So a smaller but higher turbulent port will be better for fuel economy than a reshaped, streamlined and more efficient port (and resultingly slightly larger port volume)? Especially at 2000-3000 rpm?
And it's not possible to make a port flow better for a given application (such as this one) by adding material?
You could but it would be a lot of expense and/or work for not all that much gain. This porting stuff isn't going to get you more than a 1/2 mpg at the most.