Trying something here so it can become a referral thread that tourist and Montrealers can see on the map on the right side of the threads. It's called "Place Mentioned" with a google map pointing to the places. Instructions to map a restaurant: Let's not have any discussions here and just name the place by clicking the tab that says "Manage Your Links" section below your post area. You can also use that mechanism to add a new restaurant to the Chowhound database.
My first and favorite smoked meat sandwich is Main.
Main Deli Steak House
3864 Boul Saint-Laurent, Montreal, QC H2W1Y2, CA