The epoxy is a good idea for the ports. I didn't do mine. A machine shop did my engine, but I know thay had to clearence things. He custom ordered the pistons from JE. I have a solid roller and had the heads machined for studs. I had Harland Sharp roller rocker. When I adjusted the valves I could see the rocker studs flexing. I didn't like that so I installed Jessel bolt down rockers. RAY
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