A question for Steve: I have changed chain guides,banana link ,hydraulic tensioner,and timing chain (420sel) the timing is exactly as it was prior to this work ie: with harmonic balancer @ tdc left cam is "spot on" on the mark while the right cam is lagging by a couple of MM from its respective index mark. As the engine ran well to begin with do you believe it is a common occurence?will jumping one tooth on the cam gear over advance it? When I match the cams simoultaneously to their respective index the harmonic balancer is showing 5 degrees retarded,is it worth investigating further?