Hi guys. I was wondering, as per some regular maintenance work I'm doing, can anyone give me some specific details for seafoaming the 4.3 Liter VORTEC in a 94 Jimmy to remove Carbon Deposits? Plus I've seen the smoke shows on YouTube and I think it would be a great show for neighbors XD. I've come across this link. But I'm a little confused on what to remove exactly. Running the engine without parts on it seems kind of scary.

 

Run a search. This topic has been covered before.