I have been told that Ray uses the Harland sharp and I've been told he had T&D?

I've heard T&D has systems running on the tracks.. I threw the post up here to try and find feedback on any rocker arm info available. The RPM's are expected to exceed 8500.

For a clarification. My post started with a reference to Factory Stock. It's actually the new factory shoot out class. Mopar 426 in a Challenger, against the Copo 427 and the Ford 429 in a Cobra Jet.

As I stated earlier I run Jesel on my 6.1 and 6.4 heads in super stock. Jesel does not have an offering for a Stock replacement rocker.

Totally different rule book though in factory shoot out with the 426 in Stock. Cylinder head and intake is Cnc'd, valves are Ti, compression is 15:1 all in the Aluminum block with a solid roller and lifter under a large throttle body. Controlling lash is the most Difficult. We have made dyno pulls and witnessed Geometry Fluctuation lets call it. Lol.