lots of blow by. rings may not be sealing. i had a 400 that did that it inverted it against the manifold cracked from bending and oiled the engine compartment down. it would baloon to when you rev it. that was a loose motor. a pan evac may help depending on how bad it is. Do a leakdown test.
67 Coronet 383 hogged out 906's 727 430 dana best 10.48 @126.80 1.47 60 on fogger
same car pump gas 605 wedge 9.98 @ 138.42 1.50 60 on wore out 9 inch radial slick ss springs and frame connectors its got more in it!!!
72 Newport 2 door 400 727
85 Ram 440 4 speed O/D 3.54 dana
