do i just fill it in or run a bypass...i am making a intake manifold(****** and giggles mostly, hopefully il use it with my FI setup ill run sooner or later aswell) but dont want to bother with the passages, cap em on the housings or run a bypass line to each other

 

Plug them off.

I'm so poor I JB weld quarters in.

 

wasnt sure if i could plug em or not, ill use a freeze lug they are only like .23 cents, almost a quarter

 

They are designed to keep the exhaust from getting the intake manifold too hot....