Agreed on the Valve covers! they wear out over time and get pretty melted flat....even being on the N/A motors.

best way.....scrape all the sludge off by hand....all the big clumps anyway.

then get some dawn soap and a rag.....then finally go in with some degreaser.


EDIT: also looks like your oil pna gasket may need replaced..I see a little bit of fresh oil on the sludge..