Have a 360 with Edelbrock heads and solid cam currently only has as a .528 lift, but may upgrade in the future to something that is closer to the .600 lift range. I'm currently using stock 273 factory rocker arms. I would like to upgrade them to something a little better, would love to get a set of Harland Sharps, but they are pricey. Has anyone used Comp camps 1622-16 or Mancini Racing rockers? Any issues with them? This is a race only motor and only see's 6500 rpm max.