Ported head - Dyno gains?

[JDMfantasy]

Anyone have before and after dyno numbers on ported heads? I'm interested in turbo gains, but NA will work as well.

 

[Pagong]

I am interested in this as well...

I wanted to send my heads to Extrudehone.

 

[Lextreme II]

Thanks to Mikeman and Zuffen we have some computer dyno runs:
http://lextreme.com/heads/flowrate.pdf
http://lextreme.com/heads/Std + Kelford 207-A + 2JZ Valve.pdf