Changes to the valvetrain

I ended up ditching the cheap &!! SpeedMaster shaft-mounted rocker arms for some Comp Cams aluminum rocker rockers, which was a logical choice. I'm not sure why I ever even bothered with installing those cheap-&!! SpeedMaster rockers in the first place? I suppose it was a financial decision I had made in order to not void the cylinder head warranty, but after continuously having problems with them, and being so loud, (I could hear my engine over my full exhaust system), I was glad I did such. My engine runs much quieter, and the truck is far more pleasant to drive!