Stock. I think the 1982 model 200 was rated around 8 something:1
Someone here told me it is 8:1 exactly but I know I have seen it somewhere where it was listed as being higher than that, around 8.8:1 if I remember right.
Your question is WAAAY to vague. Compression ratio is something you can optimize when building an engine to suit your needs and what fuel you will use.
The conpression for one person may not be what you should build to.
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