SBC Morel Black Mamba Lite #6690
 

New, never out of the package but to take pictures for this post.

The Morel 6690 Black Mamba Lite Mechanical Roller Lifters are made from a billet body with a pined axle and have 9,000+ RPM capability.
Recommended Spring Pressures are 150-400 lbs Seat Pressure and 550-1,000 lbs Open Pressure

These are a little over $1000 retail, I'll take $900.
Message me for pictures.