I knew who it was yours. Good luck with FlatCad I know you are definately enjoying yourself. A great cylinder head that can make some big power; it is said to be the best one for the GMC and I'm sure Bill Goldman and Vince will back me on that..Mine new one getting flowed as I write...Getting ready to design the cam. Rods are in process and pistons will be last on the list and the easiest......JD
