Some old stuff I found today
 

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I was going through "stuff" today & found a couple of gems. The first is an early '70's Engine swap guide by Hot Rod Magazine. It is in mini form, not a full sized magazine.
The second is my 1970 NHRA Stock Car Classification Guide. That is one of the guides that we used to classify cars in Stock and Super Stock when I had my Race Tracks. It goes back to 1950.