Why then does the cobra jet cam with its huge duration similar to the comp cams not need the phase limiters? is there some special thing with those grinds that gives more piston to valve clearance?
I'm not sure...but if I had to guess I'd say that either the CJ's pistons have deeper valve pockets or that cam lobe lift (more so than duration) is what actually moves the valve closer to the piston....I'm guessing the NA CJ has the right combination of the two for proper clearance...
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