[Howard Jones]

I believe it is #5 cylinder. I have found out that these type rockers are not adjustable like solids with a adjustment nut and jam nut. Lifter preload can be changed with shims or milling the head at the pedestal for the rocker.

I think I am going to change over to roller rockers from craincams. They are adjustable for lash (lifter preload) like the solid lifters.

Thanks