318 MAX fuel economy builds?

toolmanmike said

This was way before EGR and has nothing to do with the pcv system (which is just a closed crankcase vent system)

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EGR wasn't used by 1988??? If PCV is a "closed system", where do the 2 ports on the valve covers connect to?

EGR certainly was used by 1988. PCV vents to the air cleaner, then the PCV valve draws blow-by gasses into the intake manifold at the base of the carb. What am I missing here??