Pyrometer / EGT Probe Install Location

[DieselScout]

I'm looking to install a Pyrometer/EGT Gauge (Exhaust Gas Temperature) into my 1982 240 D24 (non-turbo) Where is the best place to mount the probe?

Everything I've read says that it should be mounted as close to the engine block as possible in the exhaust manifold. The reason that I am confused is that the D24 has 2 exhaust manifolds which come together below the engine. Should I try to mount at this meeting point, in the center of one of the 2 manifolds or near a specific cylinder on the manifolds?