In this pic of the kit....... it sure looks like some serious porting would be required to at least one end of the runners.
No argument porting would help. I radiused the entry and port matched at the head. No idea what it flows. But I can't imaging it wouldn't flow ehough air.
Dave
This is where I think you might be overlooking this. What is the total intake tract length? That is HUGE in power production. Second, what is the plenum volume? Third, what is the runner size in the plenum vs. at the flange and taper? All these things HAVE to work together to make REAL power. Your engine makes power, but it would seem even you are not happy with the results. I'm trying to make you look closer at the puzzle pieces to determine the problem. Or you can leave it alone...
