To be 100% sure, you'll need a dyno.
For mine, my max timing (non-boost) is 29 deg (from memory) instead of ~32. On max boost, I retarded mine to 16 (from 18-19).
But then I haven't checked mine against a dyno neither, so YMMV.
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87 930 K27HFS/B&B/Twin-Plug... Megasquirted
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