Thread: Possible valve bind

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Might want to check the pressure on the valve springs, could be losing tension on a few of them.... How many miles on the engine and or the valve springs? High RPM and high mileage will take it's toll.....

Or, if you've recently changed valve springs and or camshaft, or the springs going into coil bind?

My money is on springs....boost needs more spring than N/A,also I would think going from 15 to 20 would almost be enuff the require a spring change.
I doubt its coil bind ,as 4 k would bend or break something.