What the consensus on these rocker arm kits that Mancini sells:

https://www.manciniracing.com/b16alrowibih.html

They are made by Harland Sharp for Mancini and cost $512 for the kit.

fast69plymouth said in a previous thread that they are close in length to the $908 set that Harland Sharp makes for use with Edelbrock (and Trickflow, Sidwinder, Promaxx) heads.