after sleeping on this, maybe the question needs to be rephrased...
i think we can all agree any port alignment mismatch would obviously need to be corrected. in my case, the ports match up fine, just that the head port is larger than runners, which means that just matching them, at the point of gasket may be useless?? I assume in this case the entire runners all the way to the plenum would need to be matched - do people do that?? is that what porting the intake means?
on my 408 the J-Heads were hogged out pretty large on both the intake and exhaust side....my tunnel ram ports were considerably smaller....asked my engine builder if I should match them and his response was to leave them as is....he liked the idea of the smaller opening keeping the velocity higher on this particular build....so I did and it ended up making 475HP which was 25HP more than I was shooting for....Very Happy.
I did match the carb to intake......
Rickster
