I think this is a reprint of an original GM publication - it is 55 pages and in very good shape
this is an update of an earlier 1969 version - this manual basically gives details of performance parts and modifications that are "suggestions " if an owner intends to use their vehicle for "special events "
I have taken photos of some of the pages so you can see what it contains
Price is 15.00 - in terms of shipping this can go as a letter for around 5.00 within canada