Intake cam lobe????

Just rebuilding my 426 and noticed the center cam lobe engages first before the right and left lobes. Just checking to see if this is normal. I know the valves are at different angles. Any help would be appriciated. Thanks

If you put a dial indicator on the lifters as the cam is rotated, I think you'll see them all open at the same time due to the difference in angle between the center and outer valves. The center lobe is offset from the others for this reason.

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