Hi guys,I replaced the Rochester carb with a Holley. I put an oil breather on with the PVC port,now i'm getting oil coming up through the oil filler tube. It's a '64' 394 Starfire motor. Any help? Thanks

 

Did you do away with pcv? Definitely got crankcase pressure.

 

Just replaced the original pcv with the oil breather pvc.

 

You've got pressure build up in the crankcase. Could be your pcv is stuck shut or you have other vent problems. Or could be that you've got worn compression rings and combustion gasses are getting past and into the crankcase. Does the engine run OK? Any loss of power?

 

Do a hot compression check, look for low numbers and listen/feel for air escaping the fill tube.

 

The engine runs good,no loss off power. Thanks

 

Thanks,will do.

 

I ended up going back to the old PVC and found another vac.port to plug into,problem solved,just doesnt look as cool!LOL

 

Thank for letting everybody know,I hate it when every body offers advise then we never here the out come or what the problem was.
Thanks again railguy

 

Thank you guys. I'm still going to do the compression test on it,but that will be done in the spring time.