Ok, Here's the parts I'm going to use, because I have them allready. The only part I got out of the Jegs catalog was a Dynatech Pan E-Vac Kit #329-85-100950. This kit has a weld on fitting, that is cut on a 45 degree angle and threaded for the double ended nipple that will go into the exhaust pipe an inch or so acting like a venturi. the other end is a 1/2 pipe thread. With a 1/2 to 3/4 bushing, I will add a Ford #E9VE-AB, that is emissions style one way check valve. I have a 3 1/2 inch exhaust from my down pipe back to a bullet style muffler (you can put your arm through it) and a full tail pipe to the rear bumper.All exhaust is 3 1/2 inch. I don't think it will be to much back pressure, but if so I'll remove the muffler. You could put this after the muffler to eliminate a real mufflers back pressure, just the hose would be longer. I'm going to just run a hose from the Bank's adapter near the oil fill to the check valve on the E-vac kit and see what happens ? I just need to find out where I'm going to drill and weld in the fitting on my exhaust after the down pipe. I'm going to try it, and will let you know happens.
Maybe if the weather works out it will get done sooner than later. If it doesn't work the kit comes with a threaded plug to block off the hole.
I don't know how to post the Jegs part picture, but if somebody can, you will see how it would be a venturi and not blow backward up the pipe.
I'm open to any suggestions !
Mike