A couple quick (newbie) questions about the 292 2-barrel intake manifold.

My carburetor (Holley 2300) has no Phenolic spacer between the IM and the carburetor. In looking at the factory parts manual I found the original part # (b7az 9a589-c). My question is, is it necessary to put this spacer in or can I run the carb directly on top of the manifold with only a couple fiber gaskets?

Secondly, I'm trying to find a manifold vacuum port for hooking up my power brake booster. I can't seem to find any articles putting to the best vacuum port for the booster on the 2-barrel intake. Can someone help me locate the best manifold vacuum port for the brake booster?

 

Large port at back of the carb is used for PCV/Brake booster. Don't "need" a spacer but you want one, to prevent carb perc mainly.

 

My carb has no ports on the back of it. Only ported vacuum for vacuum advance on the side of the carb. There is a large port on the back of the manifold and one on the top, directly in front of the carb. Will it make any difference?

 

I don't believe so - whatever port is closer to the brake booster should be best afaik. Someone should chime in if they know better. Maybe get a spacer with a vacuum port That would solve both issues.

 

Thanks for your help. I'll look into that.

 

Use the port on the back of the manifold and you will be fine.