Cusser
+1y
I'd be interested if one still needs to grind down the adapter plate to fit around the hose from the valve cover tot he manifold, or if that has finally been re-engineered.
Hectron: also check to make sure that the adpter surfaces are absolutely flat; if not, sand down on a piece of glass covered by fine wet/dry, then clean well. Remember to torque everything correctly, and use a thin film of Permatex on the gaskets.