I drilled the bolt holes leaving about 1/8 inch left before coming out the deck with a 9/16 drill bit removing app 50-60 thousands of material. I cut two pieces of 9/16 - 3 1/4 long. Then I cut four pieces of 17/32 K&S tubing 2 3/4 inch long for the pushrod holes. Mixed up some JBWeld applied it and tapped them in. (6 pieces) After it sets I will dress them up and post a couple pictures. Two rockerarm oiling holes will also need redrilled.