I've seen alot of pictures of the intake ports on the heads during an intake install and was wondering if there's any method for cleaning the heads with the intake off or just do a sea foam after the intake is installed.

 

ive heard GM top end cleaner works well.

 

careful with taht stuff if you do use it its strong. we used to call it rocket fuel at saturn when we used it

 

I was surpised too at how much grime was inside the runners of my heads when I recently took off my LS6 intake. I just used a rag to wipe it out the best I could. I'm sure it's all because of the oil getting into the intake from the PCV system (I don't have a catch can or breather setup).

 

I use some crab cleaner and a toothbrush and clean it as good as I can. then I vacuum out what i can with a shop vac.

 

Your car got Crabs