Man, I saw a few on you-tube that sounded like a worn out diesel, LOUD clattering. I run the Isky bushed solid rollers on my roller in my Hemi and I am always surprised how little valve train noise there is. I really have to thank Dwayne for the heads up, cause I just assumed all the bugs were worked out. My buddy is chomping at the bit to order the heads, so we have to figure out which way to go. You know how it is, you want to help your friends out and not get them something that they will not be happy with. Charlie, if you are heading to Baytown anytime soon, or a cruise or something, please give me a heads up as I would love to check out your car! I am in Deer Park. Please keep the experience coming!