Hi,
doing some research on what could be done to a head while it is off waiting for a new headgasket I fell over @mpgmikes article on Headporting in Allpar (http://www.allpar.com/fix/holler/head-porting2.html) and those Grooves in the Combustion Chamber based on Somender Singh's theory.
I obviously did some googling and found it difficult to find anything negative about this.
At the same time I was surprised not having read anything about this around here. At least I did not find anything. So I would be interested to know if there are people around who actually applied this technic and if their experience confirms what is written about it.
I definetly found it interesting, yet I know too little to be able to make a judgement.
So I would really appreciate input.