hello im nathan i have had an rx-7 for about 2 years and now im rebuilding my 13b but im really confused about a part on the intake manifold can any one help me

 

Welcome Nate. Where are you located? Update your location in case there is a local guy willing to help.

What kind of RX7 do you have?
What happened to it that led to the rebuild?

 

I Own a Mazda FC3S S4 RX-7 88 i ended up getting it when i recked my mazda mx3 and i think it was the choice i have ever done i love rx-7s but i had to do a rebuild cuz i blew some seals and it was never running right so i want to do all the work myself and get it running the way it should be running

 

can any one tell me what the cylinder that attaches to the bottem half of the intake manifold is the the piece it attaches to that goes threw the intake manifold is i need to get new ones and i dont no what they are plz help