Hi all, Im pretty new to the carbureted engine world, and have developed a rusted out tube that is connected in 4 spots on my drivers side exhaust manifold. I have a 1987 V30 with a 454 4 barrel carburetor. After a little research, I have found that it is apart of a smog system that most people seem to remove, so I was wondering what all I go through to remove that entire system. Basically all that I know is that I pulled the drivers side tubes off of the other 3 ports into the manifold, so I will have to pull the other side and weld those holes shut on the manifold. My truck is a plow truck, so everything is rusty as hell, so unscrewing those nipples isn't an option. This truck also has 2 air pumps that I need to remove, so I went ahead and removed the top one, and a couple of the obvious lines. Now i'm at a bit of a standstill, so any help you guys can provide would be much appreciated!