67 Camaro convertible.030 over 4-1/4 stroke (makes it a 489) 230-240 @ .050 hydraulic roller, Edelbrock oval port, power everything, 3 speed auto, 3.08 gears stock exhaust manifolds, has Jebby’s favorite carb- the avenger, and still pulls hard to 5800-6000 All of these examples rev instantly, and will shred rear tires until you ar tired of holding your foot on the gas