[Horse]

When porting out the short runners on a 99+ lower intake, should you strive for the same diameter througout, or more of a funnel shape?

I have some lower intakes that weren't gasket matched because I didn't have ported heads when I got the intakes, but now I'm getting heads and I wanted to port the lowers to match.

Suggestions anyone?

Thanks.

 

[Horse]

The upper, and the top of the lower (I think) are already gasket matched, so all I have to worry about is matching the size of the head port to the lower intake port.
Thanks