This is a used, stock cam. However, the peak is still exactly where it appears it should be based on Paul G's data. If you measure the duration based on 0.010" of lift... the width of the lobes also appears "normal".
Take a look at my graph and note that peak lift for intake is right at 110 ATDC and peak exhaust is at 110 BTDC. Those are right where the specs say they should be. Now look near the right side of the chart and you'll see the intake and exhaust lift curves cross each other right before 720 degrees. That's the crossover point which occurs right at 0.031" of lift (on both valves) at about 4 BTDC. I am confused because the cam lift points are right where the specs say they should be but this crossover point is happening 4 degrees before the overlap method says it should occur.
Doug
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: Doug just to confirm, this is a USED
: stock cam?
: Glen
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