Thank you Bob. Mine is setup this way, as you describe. I made an error in my earlier post, so am attaching the only picture I have on file. Thermactor setups have a smaller rubber hose, attached to the metal line shone here (the verticle loop one in the background), going to the smaller nipple on the intake fittting. Forgot all about this. Been way too long since I've been under the hood. So if no factory smog, the small nipple gets capped.