I did that. I think it be the PCV valve

 

Here are the compression numbers

#1: 120
#2: 110
#3: 130
#4: 110
#5: 125
#6: 90 100 wet
#7: 125
#8 130

Plenum looks clean so I'm thinking valve stem seals are bad allowing oil to get into the combustion chamber. Probably going to do rings to but that is in the air. With two engine swaps coming up (408 and 6.4 Hemi) I'm not too worried.

 

I would more suspect rings, than valve seals......

 

The only one that changed with the wet test was #6

 

There can be only one....... No, wait. All it takes is one. Yeah, that's it. ALL of them are low though.......

But your pressure really didn't change much wet. I think a leak down test would be in order.

 

Im going to pull the heads anyway here in a few days when I do the Hydroboost. Bribe 2 plug wires abs a header bolt was just sitting on the header (ghost mechanic?). I have done note tests to run but #5&7 are a pain

 

Do the hydraboost first. Then 5 and 7 are easy.

 

Oh believe me a lot of cursing was said on those two. Can't imagine you with the V10

 

I cheated. I paid someone else to change the plugs/wires...... It was worth it.

 

Well mmt plan is this once I get everything together (still dealing with that damn vibration and now death wobble due to a bad track bar so I'm upgrading to the 3rd gen bar) I'm going to pull the heads replaced the valve stem seals, head gaskets, and change the rings if everything looks good. May get new heads if they are cracked but don't want to spend a liter of money as im building a 408 to put in this beast. Im going with a forged bottom end.

Can't cheat, you are missing the fun!