I got these heads. casting # 3890462, '66 302/327/350. camel hump heads.There supposed to be 2.02 intake, 1.60 exaust. They have Comp cams guide plates, screw in rocker studs, and Sig erson roller rockers. I also have an early Edelbrock torker intake, and a holley 600 carb. I will sell the whole combo at 400.00 + shipping. The carb is nothing special.