69 flat bottom cowl air cleaner

[bluecopo]

did they all have 1 notch on the snorkle seam or did some of them have 2 thanks for any help

[luv2sixty9]

The factory installed only had one knoch. I found that the later NOS have the two knoch and no flat bottom. I have an NOS in the box that is dated 1975, so that gives an indication as to the year. http://www.yenko.net/ubbthreads/images/graemlins/biggthumpup.gif