3 angle port n polish head

[lilvee]

what is it? available here? where?

I heard is good for FI car

 

[MaNofWaR]

i guess u mean 3 angle cut valves which is usually done when u do port polish.
not many place capable of doing the 3 angle cut valves...port polish quite common

 

[lekalo]

3 angle cut refers mainly to the valve seats to 'optimize' air flow there rite...?