When I rebuilt my Blue 308 pollution engine a decade ago, I installed an edelbrock performer manifold due to corrosion issues on the original manifold - problem is it's not going to allow me to comply with ADR27 rules because of the lack of EGR support for the upcoming blue slip.
The car is a 1980 WB caprice 308.
I have two spare manifolds, the original is completely unusable as the water jackets have completely corroded please see blue pic attached.
The second spare manifold looks to be off a red engine, as I can see orange paint on the front vacuum switch and I have noticed that rear vacuum tree is a little offset, and has less vacuum branches compared to original please see Red pic attached.
Does anyone know if I can run the red pic manifold on a blue 308 motor?
Appreciate any input!