Great original period magazines by automotive engineering writer Ray Kuns, each 48+ pages full of racing pictures and all kinds of ideas for building sprint dirt and track race cars, many 4 banger related articles T A B Offy and Indy too. These are really useful with so many ideas on how to make a chassis or engine really perform. Wonderful Christmas present for that guy the family has a hard time finding a present for! Issues 4, 5 and 6 available at $45 each, take all 3 for $120.
These magazines have great articles on building race cars. Including body patterns and how do frames and suspensions. If you want to know how they built race cars in the 1930's and 40's these are great sources.