[Tom Goldman]

Jeff has it right. ...There is a '69/'70 down near Lancaster ,Pa. .....the owner showed me the documentation.....The later '70/'71 3196291 head casting superceeded the original rectangular port heads, I believe in the mid '80's ..............I have an original, damaged, Crane head . The porting was nothing spectacular by todays standards, but in '69 it was probably better than the best Modified Elim heads ......Tom