what is the gasket for with the 3 holes vs.the 2 holes

the 3 holes have 2 cemicurcle

o o

o

and the 2 hole ones have 2 holes, purfect circles o o

is it an issue of injected vs.carb?

you mean this vs this vs this?

 

Here is the spyder intake gasket, it goes between the upper plenum peice, and the lower half that actually bolts to the head and houses the fuel injectors.

 

Here is the SPFI and carbed intake gasket.

 

Here is what the MPFI and turbo would look like on an EA82.

 

Does that help?

I have carb and don't know which gasket to use, do I have the wrong ones, is there a coolant passage?

set came with the one in my pic and the one for your bottom pic

which one is for ea81 carb/others?

That is for the spyder intake plenum...those are only on the EA82s....the one you need to use is the second one i posted.

that figures, they sold me the wrong ones

what is the smaller hole for? water or air?

the set I bought fits 73-94

what is the smaller hole for? water or air?

the set I bought fits 73-94

That is the coolant passage from the head, through the manifold to the other head.

 

Bill