Both ports in the catch can are 3/8" NPT and it came with 2 x 1/2" barb fittings.
The PCV valve in the 86 has a 3/8" barb, where the inlet manifold has a 1/2" barb so the factory hose has different diameters at each end.
Instead of trying to clamp a 1/2" hose down on the 3/8" barb at the PCV, I swapped one of the fittings that came with the can with a Speedflow fitting to suit (a 421-06-06 in black).
This allowed me to run a 3/8" hose from the PCV valve to the catch can and 1/2" hose from the catch can to the intake manifold.
Odometer: 64,119 km
JRD
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