I recently bought a big valve, semi chambered head (e-bay £10) I did not know whether I would use it, but having just cleaned it up, I am amazed at the quality of the porting/polishing work that has been done - this head has cost someone a lot of money to have worked, hence, I now want to use it to upgrade my current 1600 (AX bock) engine. Thoughts, past experience, would be very welcome - Roger King, are you out there ?.
Many thanks
Mark.