Has anyone............

Im not sure.But as far as why mess with 40 year old heads when you can have new aluminum heads.My buddy did a home port job on his J heads for his stroker build and got 270 CFM,fully preped and set up for under a grand.He is not a pro,just builds engines as a hobby.I would love to see someone find any aluminum heads for that price.Let alone ones that can flow 270! Not to mention Iron is better for a street car. To me why spend 2grand+ When 40 year old heads can be made to flow just as well or better for less cash. My .02