ALERT!! SOUND THE ALARM!!..

j par said
well it took me a couple hours but I finally figured out what you're talking about LOL..
I was thinking if I grind that whole Corner out make it a square hole there'd be no room left for the headers to seal and then the header is shaped that way as well! LOL now I think I get what you're talking about.. actually opposite of all that..
Not the sharpest tool in the shed but I'm trainable...
Click to expand...


If I was going to go OCD on that area, I'd just start a the top of that angled side of the port and just blend up. I wouldn't go down.

I'd bet a lot of money the air (at least at some point in the lift curve) will be flowing back into the port right there.

So making it bigger across that area will make that worse.