Recalling from past tests- the #1 cylinder was more than 15% lower than the remaining three.
Might be time for a valve job...and motor mounts again. At least the VVT mount still works.
The question would be is it the valve guides or the piston rings that's what you have to determine. With carbs or ITB's you have to throw in an additonal question "are the throttle bodys balanced out correctly"