Technical J&C Engineering sbc 4-71 intake

Can ANYBODY provide me information about this intake. I have searched the web and can not seem to find any info on it.

Who were they?
Year of manufacture?
Rarity ( I know all 4-71 sbc intake are rare)

 

That happens to be the manifolds that were made by Jackson and Carson,Dallas,Texas George Jackson and Jimmie Carson,,,I'm sure both parties are deceased by now,Maybe Wayne Calvert up in Denton could fill you in..Calverts Automotive on Dallas ave,Denton,Texas

 

Any idea on what years they where produced?

 

They were made in the early 60s,,We sold a few of them from our store in Dallas.
Jimmy Carson was the engineering part of the duo,,,George was the money man

 

Back in the early 70's a buddy and I went to the Pate Texas swap meet from Connecticut. At the swap meet I bought a J & C 4-71 intake as well as some other J & C parts. the intake appeared to be a copy of either Cragar, or Weiand. It was good quality. I wish now that I had kept it.

 

I’ve got one of those intakes along with a complete 4-71 setup and a 2 port if anyone is in the market!