If you want to get the head to flow better. There are epoxyies out there that you can fill the ports where you want to & remove it where you want to. Devcon is a good product also a little more money for other types of different applications,Defcon w/aluminum,Devcon w/titanium etc..
The trick thing to do is use a mig welder(wire feed) & apply weld wire to the intake ports where you are going to apply the epoxy,basically you will be leaving short welded pieces of the wire that has welded to the cylinder head,make sense? This will make it so the epoxy or JB weld will have something to attach to. Thinking outside the normal Box. Of course you need to freshen up the heads more often to reapply the epoxy,so it will not be much of a "street head" Then again it seems to work for a long period of time.
Porting into water chambers & applying epoxy is what Hendric did on the Famous L6 cylinder head that flowed over 320 CFM IIRC.According to Mike Kirby & he also has that famious cylinder head last I talked w/him about that.
It is what guys do also as I stated earlier in Super stock class,heads have to be stock cast iron & cannot be any larger than a stock port volume/cc's
If you looked at one of these heads you would not recognize the port if you saw them.
