My 995 springs were broken in prior (used) but to answer your question, I would say the pressures would drop after break in as expected. Just like the factory spring would and specs Kenth posted. The factory probably understood the initial pressure loss and springs are spec't accordingly.
I have a question for you too Paul. After initial break-in and loss of pressure, is it assumed that valve springs are stable and will last forever? Or will they wear based on cycles that decline over time with use? My thinking here is the decline after breakin might be slow but still there and wanted to get your thoghts.
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