Hi. Preparing for the DoD delete build. I ordered the GMPP CNC heads from JEGS but they are backordered, so I'm beginning to question my choice. I wanted to upgrade my intake valves, which would also require new seals, and the price of the CNC heads at $1200 just made sense to me. The factory LS3 heads from JEGS are only $700. What do you think? Am I wasting money on my build with the CNC heads? Some day I may want to stroke it or do something more so the cost of the CNC heads at $500 more seem to make sense. But my 6.0 may do better with the LS3 heads. In any event, I will sell my factory heads to recoup some of the money. For those that have the CNC heads, was it worth it performance wise? And since I am not replacing rods and rod bolts will I see enough "safe" rpms to benefit from the ported heads?