Found them, thanks Pete.
https://www.zip-corvette.com/66-80-3...stainless.html
Good you sent me there- I noticed something about the exhaust manifolds when comparing them to the set I purchased.
Zip-Corvette shows exhaust manifolds that have the correct raised flat fins on top while the set I purchased from Assault Racing do not. The set from Assault appears to have had a lot of material removed from the outside and have been smoothed. Not sure what effect this will have long term (cracking) or if the stove assembly will fit properly on the Assault manifold.