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Yes, I think it's KG racing , they have a banner at Dragway 42 , He has several porting programs for different heads. I have one good ported 906 if you are interested, the other one has a boo-boo.
I've seen this company pop up in other threads on this topic in a few searches as I'm considering going this route with my 452 heads on my upcoming build. Would be nice to hear from others who may have used their CNC porting on iron heads and what their experience was (flow numbers are great, but dyno/track times would be great to see too).
Wanting to go this route with my 906s, but I've read a couple of articles where ported / massaged heads crack over time due to the removed metal making them weaker. Any experiences / opinions on this? Thx