One more suggestion...the height of the pedestal should be dialed-in by the ideal roller-tip placement. I.E.-with total fore-and-aft travel=.100" ideal location at lash should be .050" intake side of the valvetip centerline. In reguard to my previous post and pedestal plane angle since you already have a base machining done and holes tapped...DISREGUARD!!! I'll leave the post unaltered for archieved future reference.