Chevy monte carlo

Does any one know if a 350 engine can be adapted to a 267 manifold and if so will I encounter any mechanical problems.

It’s possible if the engine is an 85’ or older 350 block. The 267 intake probably has smaller intake runners so the engine will not be able to breathe properly. Why this combination?

My monte carlo had this perticular job done to it but has some problems. The car has trouble starting and once it starts it will not stay on for long.