anyone recomend descent leakdown tester?

i thought it might be my pcv system, so i put a clear fuel filter on my pcv line and i noticed it helped a little bit with the smoking but didnt take it all away, And the baffles suck on my mopar magnum valve covers, its just shocking to me that an engine with less then 20 thousand miles on it and that passes a compression test with flying colors is burning oil upon de-acceleration.