Trying to finish getting things cleaned up. The inside of my manifold is caked in black muck. Anything particular i can soak this thing in?

 

seafoam!!!! that stuff works wonders haha

 

that's what my truck lived off of. (don't wanna waste a whole gallon for cleaning lol)

 

actually used the washer reservoir to feed into the intake. when i stopped doing it that's when the goo came back

 

You can have a machine shop cold tank it.

 

Laquer thinner is my weapon of choice! also favor diesel fuel when appropriate, they both worked wonders on mine!

 

I'm doing the HG on my 94. Intake looks HORRIBLE but obviously this is a common problem so ...... it

 

Carby cleaner, petrol, machine shop hot tank! If its really thick you will never get it all out (I know)

I think it's related to the EGR system, when i did my motor change my manifold was as black as, 20000 k's later i'm converting it to EFI and it's surprisingly clean.