I just finnished installing a pcv system and eliminating my draft tube on my 51,3100 with a 235,I fabricated a tube to replace the draft tube and purchased a pcv valve and gromet and a four foot piece of 5/16 hose all toll about ten dollars for parts needed. the engine seems
to run a little quieter,and no more oil drip on the driveway, no more oily smell when engine is running,I will run it this way for a while ,and let you all know how it works out. old navy 51 from new jersey....................
