DAMN, my Stang have 107K and I beat on him everyday and I got 185 at all cilynders before heads, after heads it drops to 180,and I was thinkin my compression is low
BTW you can check compression your self, go in Walmart and get cheap tester around $20, engine have to be warm , take all plugs,take cil wire off,put hose in spark hole and gauge to the hose, get somebody sit in your car ,WOT and crank 7 or so time, BTW battery have to be fully charged, if you got low compression at first stroke that mean valve are leaking ,now write all # than put little bit of engine oil in spark holes, than do test again,if you got higher compression that mean piston rings are bad on that cilynder,if you got low readyn on example #1 and #2 that mean head gasket is bad
Any way you can find info "how to" in Haynes manual 94-99 Mustang