Need some help !!!!!!!!!!!!!!!!!!!!!!!!!

-Well, if you combine soot and excessive cooling system pressure, that sounds bad.......
-I guess, at this point I would be pulling the plugs, looking for coolant in the chambers.
-I would be looking for a pressure loss into the cooling system. To that end I would plumb a 100psi guage into the cooling system,using the overflow hose,or,you could use a cooling system pressure tester if you have one.
-And then,I would be doing a leakdown test. I would be doing the LD with the pistons at the top, in the usual way. But if all holes pass, I would switch to doing a second LD, with the pistons at the bottom. This means the valve gear would need to be removed.

-The first test would prove the problem lies above the top ring. The second would prove the problem is in the cylinder wall(s).
-Soot and pressure could enter the cooling system, through a cracked cylinder head, a cracked cylinder wall, and somewhat less likely; a bad headgasket,and least likely insufficient bolt-torque.I have reused FellPros 1009s several times on my 10.7Scr 367cuber, so I have a lot of confidence in those. I have no confidence in the thin Orange ones, (although some here have successfully used them), and the Black ones I know work on stock-compression teeners.