Sure appreciate all the info and the willingness to share.  Had tthe privilege to visit John Mummert last week, He is building a stoker for our T-Bird. His shop is beautiful, saw more y-blocks there than I have for a long time, building a y-block with 2 superchargers on it, looks like it will be wild. John is a very nice person and for all of his knowledge very humble!!  Again many thanks to all.   God Bless You and Yours!!   Eddie