Edelbrock did not move their foundry operation or their R & D. The only thing they moved was the warehousing and distribution to Olive Branch, Mississippi.
My understanding is that all the machining to the castings(heads and manifolds) used to be done at the headquarters building in Torrence, Ca.
That building was sold......... and the machining operations for the heads was moved into the foundry location in El Jacinto, Ca.
The manifolds are now being machined in Olive Branch, Ms, along with all the warehousing and distribution.