Oldsmobile's are power monsters. Nobody really likes them cause they're not the cheapest to bring the power out of. I have an 458 (Olds), built with Diamond pistons, Eagle rods, billet steel mains studded with a 5cap halo, studded & majorly worked ProComp heads, Victor intake, Holley dominator, Lunati roller hydraulic 322/601 with 112 lobe sep. All balanced, SFI'd, and ready to rock. Calculated, not SWAG'd, torque@ 588 HP approximately 600'ish.