Hi Chris, Good I'm glad we are on the same page! I took one of those Foam wax applicators that came with one of the prods I use for detailing and cut it up to make a cylinder about 1 1/2" in dia by about 2" thick. I tested various foams I had laying around by sucking thru them to find a low resistance one. It turned out to be something I got from Autopia, a generic foam applicator. Then I found a short lenght of vacuum hose to fit the metal port on the solenoid. I didn't know exactly what the OEM filter looks like so I winged it. I made the hose long enough to have a gentle bend, no kinks, over the top of the solenoid back towards the rear of the motor, just past the vac. tank so it was laying on top of the "official vacuum hose assembly".
Next I made a hole in my "filter", not all the way thru but about 1/2 way and used some rtv permatex blue to "glue" the hose into the hole I had made. Just put the rtv on the sides of the hose & let it set up & it worked as far as holding and it allowed air thru the hose! I stuck it on the solenoid & I know it's a bit rediculous looking but I think it works because my secondaries work!
Tom