Originally Posted by snrusnak
I wouldn't recommend throwing shims under the lash adjusters without actually using a feeler gauge to get the appropriate clearance at the valve stem/rocker. I'd pull the valve covers and check each one and add shims under the lash adjusters as required.
I never said to shim them all, it is most likely one int and one ex. You don't have to pull the valve cover...use the stethoscope to find it with the vave covers on.