[FUNFER2]

I agree with the solids. I've had no problems with mine. 600 lift-252 duration. Roller Earson rockers. Adjusting the valves take's less than a hour, from removing the valve covers, adjusting the valves & buttoning it all up again. Things like, using all studs, rubber gaskets & the valve lash tools, help in a faster job. After the engine build, I lashed them twice. Since then, only twice per year. With a flat tappet, you can hear & feel when they get loose. I'm happy with my set-up anyway.