Anthony, I am sorry to hear you are having problems with your engine. If a Whiplash cam does not have a lumpy idle then something is definitley wrong. I looked all through our e-mails since the time you ordered the cam and I could not find where you had e-mailed us. Maybe it got caught in the spam folder. Sorry about that. There are several things we should talk about to try and figure out what is going on. If possible, please give us a call and we will get to the bottom of it. We have had almost 100% positive feedback on the Whiplash series of cams so I would really like to get this corrected for you and make you a believer.