It's a nice idea, especially on our cars where the intercooler and pipes get heavily coated with bypass oil. Problem is there isn't much room to install it on the SC, because the PCV valve is in the rear rocker cover and the pipe wraps around the back of the plenum. Years ago MN12 had a similar idea using a small in line filter, but you needed lots of hose to run it forward towards the ac compressor & then back again. Both the MN12 and Steeda designs are only using an oil separator that you can buy at the local parts store for your workshop compressor. Atleast with the Steeda design you can see the oil build-up enough to know when to clean it out. Of course before the days of emissions you had similar baffle type separators, but the excess reside was just piped to the atmosphere. If you want to try it, I'd get the smallest glass bowl oil separator you can find from the parts store (maybe for a Campbell Hausfeld compressor), bracket it to the firewall and make up your own hoses back to the pcv valve and plenum pipe.
