I have an old C20B that was converted to some point to LP.

I believe I had a bad vaporizer. The lift would start usally, and the vaporizer would freeze up. Could get it to run ok for 20-30 second if I shut off the tank. Also when key was turned and the cut-off was open, you could hear a hiss from the intake filter.

The vaporizer on it was a Nolff's model N-J

I got a Century Fuel Products C-Cobra-1 as a replacement.

I notice that the Nolff's list W.C. of.2LBS and the Cobra lists it as W.C.0.08LBS. Seems like every other one I see on-line is also the.08LBS.

I can not find much information on that spec to understand if it is an issue or not.

Any help or insight appreciated.

Thanks,
Scott