Just a question, when you changed cams did you install new lifters? I have reused lifters on occasion(money,time)and have not had any real problems. If the problem started with the previous cam and had the same lifter that may be something. If the cam bearings were installed wrong during the rebuild it should have shown up during the break in. We are assuming that the timing is correct and the timing chain was installed right. Do use think you could be 1 tooth off on the distributor? It still seems like a detenation problem. Does it do it while in park and RPM's up or just under load?
