take your metering blocks off and lay them pv side down, look at the pump shot passage and follow it up to the middle of the block where it turns and goes into the main body, at the turn is where the .028 hole will be. its hard to see, but if you turn the block around and hold it up to a light, look thru the pump shot hole just above the pv. its hard to see, but if its there plug it with some jb quik.