if you have any lift at all, you have to get the cam reground. the lobes wont' fit through the second to last hole, tried that already.The guy at howard cams said he would take a little more off the back to make more clearance, but the guy that ground the cam, wasn't the guy I talked to... I was thinking more along the lines of boring the cam bearing bores to fit the large journal cam. Then you would really have some metal to play with.