Did you get the buckets replace with a different size due to the increase in duration of the cams? This has to be done so the valve doesn't hit the piston. I have the JUN cams and have no problems. These are not just drop in cams. You don't have to get a retune right away because JUN made these cams to run on the stock program so that's not your problem. You really need to make sue the intake side is still in factory spec with the VVEL actuators. Go to the dealership there and tell them you need the VVEL actuators reset to factory cause there is a long procedure they have to do in order to reset it. I was there for my entire build so if any other questions please ask
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