LOL, that's ok. I theoretically know where the TBI's PCV port is. I say 'theoretically' because I've read the where/how of it and even found lots of pics of the hose running from the fixed PCV orifice to the TBI on various GM engines. However, it's dark out and I'm not at the family lake house's lit shop, so I can't go out and compare to my own engine. Learning one's way around one's engine without an engine diagram or an experienced engine guy to tell you what's what ... is a pain. I mean some things are obvious, but there are just too many hoses running about doing too many important things to guess and be wrong. (And I'd hate to put this stuff into the crankcase by mistake! Talk about some bad mojo.) Looks like I need to acquire a 3/8" hose for this activity, too. I wonder where I can get that... maybe some fuel line hose from an auto parts store. Will check in the morning.