Well my clock is around 188k miles, has an oil cooler, and never do i have to add oil, it stays full, the rear main leaks, like a drip a day, so its not a problem, think it fxed itself

also my motor may have been rebuilt sometime in its day, but the 2 and a half years i owned it, it has seen at least 800 passes down the 1/4, and it does'nt burn any oil, I also tighten my valve covers like every month or so, and use only 10-30 havoline synthetic, for a while i was using 20w-50 racing oil, and it didnt burn any then either.
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Police package 5spd 90 Lx, Stock original motor, 3.27grs, BM fan, fms 10.5 clutch, D&D quadrant, and adjuster, ADS chip, 180 stat, mac cai, mac h-pipe, mac subframe connectors, ASP crank pulley, ripper shifter, 26x10.5 M/T sport pros welds. 246 hp according to analyzer

Race weight: 3,120
E.t-13.57 with 26x10.50's e.t. streets. 1.88 60'
mph- 99.92 mph