What about the damper? I've run one for years on stock blocks and now an Indy Maxx. I've always run a fluidamper that I believe was stock replacement. I don't think there is a problem there. You have to set the cam thrust. I had to take a 3m "cookie" and remove material from the raised button so that the cover wasn't pushing on the cam probably was a good .060 interference. I also didnt like the news paper thing for setting lash I endded up removing one dowel pin to get rid of excess lash I had. basically clocked it on one dowel and bolt it down. With the cover off you can "feel" the lash. I do like it though,set the cams .050 intake number and line the gear bolts and adjust from there for preferance. Very fast set up.