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I have an aftermarket cam I took out of a 68 Dart 273. I don't know who made it but I think it is Textron. It has 910142 stamped on the back end and has 2 yellow paint dots on each end. There is a spot of purple paint by the distributor gear. Has about 10k miles on it. I have all the lifters and they are marked to match the lobe they ran on. From measuring the lobes it is .420 int/.420 ex lift and I don't know the duration. It was slightly lumpy at idle and a bit loud. Ran nice at higher rpm. $75 plus shipping from 65810