The Importance of correct flanges...

[Y-TRY]

In speaking with a couple people, including Kook's, the basic opinion is that the port being masked like this has a negligable effect on power, probably less than 5 hp, as long as the top of the port isn't covered. The majority of the exhaust is racing out the top edge of the port anyway, as the story goes. The tops of my ports are actually pretty perfectly lined up.

Since this is a street car the power loss is less of an issue than a competition vehicle. None of the solutions really justify the means it takes to fix it. I could buy another set of $1800 headers, but that would be the most expensive 5hp I've ever seen. So they'll go back on as-is. If I start noticing extra wear or stress from the flanges heating up or something I'll deal with it then.

So much for all that porting on the heads.

Mistake made by me..... lesson learned by all....... I'm here for ya, man.