This head was done by CNC Heads and was ran on my car for a 1 race.

This is proper porting on inlet and exhaust and the maximum you can take out. its using standard size valves.
This is for MFI Rs Turbo or Xr2/3
comes with Fulcrom nuts/Valves/ etc no cam.
Combustion chambers have been bigger for more cc.

Cost about £650 last year.

£200 inc PP