I'm not looking to start a fight either so I thought it was best to clarify things.
Concerning the heads we build and sell to the general public, ALL of the cast iron and aluminum head CNC porting programs I've created have 100% been digitized off of hand ported samples 100% created by my two hands completely. Anyone saying anything different is a LIAR period!
We do have wholesale customers that have hired us to digitize their sample ports and create tool paths that are then used to cut their heads exclusively. I will not use these programs to cut someone else's heads for any amount of money. We do this type of work for any engine make and it's a great way to keep the CNC machine making money while I work on finishing heads or engines.
I've hand ported cast iron heads to flow more than what our CNC programs flow but the problem I've run into is because of core shift you are asking for trouble pushing the envelope. I've had to back off on how much material was being removed in areas as I don't care to sell ticking time bombs.
If anyone has questions concerning anything we do at SD Performance don't hesitate to drop me an e-mail at
[email protected]