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I just did quite a bit of work to mine, so I have been paying particular attention the last couple of days. Cold idle ICP runs about 1800 PSI, I think IPR is in the mid 30% or so. Cruising about 80 MPH, seeing 2200 PSI or so, IPR in the 50%'s. WOT I see 3800 PSI, not sure of IPR position there. Hot idle ICP 585 PSI, IPR 22.5%. Hope this helps.