Yes, my Cutlass does have a 12 bolt rear end, but the guy I bought it from said it was an OLDS 12 bolt (as far as I understand, it's the durability equivalent of the 8.5" 10 bolt Chevy rear end). The car originally had four wheel power drum brakes, but the fronts are now discs. I was originally looking for a car to benefit from the Chev 454 I've got, but I don't have the heart to put a non-Olds engine in this car. Maybe a 455 or a 425 some day, but for now the 350 rocket stays. Short term plans include headers, an Edelbrock intake and a 670 Holley Street Avenger... and maybe some roller tip rockers. The exhaust is true duals with Flowmasters; appears to be 2.25" inch from front to back. The engine now has HEI ignition. I appreciate a certain degree of factory originality, but the discs and HEI are staying put, as are the aftermarket gauges (I have no faith in idiot lights). I should have some pictures soon, if it ever stops raining...
- GoldOlds