Porting a type 4 head, Not much of a short side Options

[Shivers]

Because the port is almost straight, with little long side short side concerns, with what there is , do you find it necessary to slow the flow down on the “short side” to get good flow out of the valve. I was reading about something mepstein posted a picture of. Small divots, like a golf ball. So I’m going to do that on the long side, just wondering if there is any reason not to also do it on the short side. Thanks guy’s (IMG:style_emoticons/default/smile.gif)

[Brett W]

The Intake port isn't the problem. You can easily over port the intake side and screw up the balance across the intake and exhaust ports. Bigger ain't better. Its all in the shape.

[Shivers]

The Intake port isn't the problem. You can easily over port the intake side and screw up the balance across the intake and exhaust ports. Bigger ain't better. Its all in the shape.

I have not even begun yet. Did some reading by an engineer regarding fluid dynamics and the use of divots. The guy was saying the divots are only necessary at the source. So thank you (IMG:style_emoticons/default/smile.gif) , I will clean up the intake and exhaust, divots go under the carb on the manifold. Last set I ported for myself were 1.7 heads, lots of meat for porting. Not much on the bone with these 2.0l heads. If my budget was bigger adding some weld in some spots would be nice. I did catch a look at something special that Bob Burton had and posted pic's. Can't remember who's work it was but this guy ported the intake port and the manifold in the only place that was possible. I have that picture somewhere.