The seafoam idea was a stroke of genius.

My car billows smoke from the rear exhaust manifold (of course).

My plan is to pull it this weekend and see what I can see. I can always weld it back depending on what I find. I can't tell if it's from the mani itself, a gasket or what.

Any advise/infpo regarding pulling the back manifold? How long does it take etc?

It looks like something I can knock out over the weekend.