check valves
 

does anybody know of a company that manufactures a 1 way check valve, its for a supercharger application for the crankcase, as the pcv system isnt cutting it even with a turbo coupe pcv valve

Check Partsource. I was there the other day looking for check valves and found all sorts of heavy duty PCV valves that should hold boost for under 10 bones.

any pet store that sells aquariums will have check valves. Thats where i've got them from for turbo apps.

i found a couple from bluestreak...they needed to be 3/8" in and out and heavy duty...pcv valves werent cutting it, I think these air pump check valves will work fine

for anybody wondering the part numbers are AV23 and AV35