This is my '75 Hurst/Olds W30. I've had it for many years and will probably never get rid of it. I had a similar Cutlass when I was in High School. I have replaced the original 455 engine with a worked up 468, Alum intake and Holley carb backed by a Grand National 200 4R 4 speed tranny.The rear suspension has HO Racing springs, KYB shocks and an 1 1/2" swaybar. The front still remains all stock.