I did my own headwork I done everything to this car except the balancing and cryo treatment of the whole bottom rotating assembly.This is what I did on the cylinder head.

Stock head-ported intake side of cylinder head port matched to the lower intake runner,ported the lower intake runners.The upper intake was left alone due to the fact that toyota port matched the upper intake to the lower intake.And it flows perty dam good from the factory.

Now the exhaust side-This is were you get your HP from.I enlarged the ports and port matched to the exhaust manifold.

I left the stock valves in there cause they flow well enough for what I want to do.

Keep in mind that I'm still running stock cam's.I really wont see the results until I get the correct lift and duration.And the turbo will determine some of that also.I'm sorry but the flow number's I rather not say right now.You can look at the results for now. And see that with right cam-turbo combo the torque and hp should be nice!!

I have an sc300 that I will be building sometime next year it will get the full treatment also.