When to make a car a parts car?

YY1 A 72 big block B body may be worth something someday.If it's something that you "want"to do.
Much time and money goes into rusty cars.
A friend saved a 71 'Cuda 340. Only parts that were original were the roof and upper cowl.
The rest was good old AMD parts that had to be modified much to make them fit.
Good thing he owned a body shop.

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