Eddy heads on 416 stroker question

I live in Alabama and have never met Mike besides on the phone. Just a little shipping, no big deal. I think I may have worn him out with questions though. The engineer in me, I suppose.

Until I looked it up yesterday I did not know the difference between the open and closed combustion chamber configurations either.

Next I will be taking the iron heads off my 340 and looking to put the ported eddy's I had on the stroker on to it. Also change the cam to the PP 508 that was in the stroker unless the 340 already has one. Spare engine...