My Duster motor has really loose bearing clearances(.0035+ ) and Harland Sharp roller rockers with full time oiling and no restrictors, it has 17 to 19 lbs at 850 RPM at 200 F oil temps with 5W20 WT It does have thirty lbs. at 1200 rpm at 200 F and 65 lbs at 7000 RPM


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)