[ToronadoGuyDenver]

I've been trying to figure out how to tell whether or not my 1985 Oldsmobile Toronado has a Vacuum switch or not?

I put a new Booster on and the pros at AutoZone didn't know either and I got one with the switch. The brakes are horrible even after putting on a new Booster, Master Cylinder and brake pads.

Can anyone tell me how to know whether my Booster has or needs to have a vacuum switch?

Also, if anyone has any advice on brakes here's the problem.

Even after replacing all the parts listed above and of course bleeding the brakes several times, the brake light still comes on and the brakes go to the floor. It always stops but not like it should of course. I believe it to be possibly an electrical problem? I'm just not sure after doing all that I have.

I am considering putting on an entire brand new brake system which could cost me lots beyond what I've already spent. Also, maybe I should take it to a shop and have them bleed them and see if that helps? Maybe there's air stuck in the line? I wouldn't think so, but.... Also, maybe it has something to do with the Vacuum switch issue?

Thanks for your help