94 jaguar xj6 intermittent misfire

Is this the same car about which you posted " 94 xj6 misfire and valve noise" two days ago when you reported a similar problem with “the last” cylinder (presumably #6) which now has that problem with #1 cylinder?
If you do have a bent inlet valve on any cylinder which presumably will prevent it from seating, there is no way that the cylinder will register 180 psi on a compression test.

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