67 Formula S

Suregrip391 said

If it was a formula "s" car it would have a "7" under the "F" on the fendertag. Yours does not have that....Still cool car to build! Have fun with it.

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The 31 signifys the engine

Can't trust the decoder, got my white book. My mistake, 273 2bl car. Not a Formula S. But it's a cool car to do whatever you want without hurting the value or any rarity.