CHEATING.

[Oldfart]

If the rules allow it, or don't exclude things, then it can hardly be cheating can it?
Aiming at nobody in particular, if the rules specifically say a given cubic capacity (as does Formula Ford) and you then run a greater capacity, that is cheating. If it says minimum weight, and you run lighter.., control camshaft and you use something else...
If the class is "Allcomers" there weren't a lot of rules!
Using a shell which mysteriously went through a "workshop fire" so it could then be given a light sandblast and minimal paint, with the approval of the tech stewards, now where does that sit? I always thought it was strange that the car intended for "Production Racing" had absolutely nothing in it when it caught fire No interior, no wiring, no suspension at all....