Slant heat riser block off/delete?

My car idles in 20 seconds and is ready to drive in under 50 degree weather. I have the electric choke adjusted so it slams completely open and I don't even have it wired up. I'll be glad to shoot a video if you like.

My Offy dual 1 barrels and Dutra Duals have no heat riser and will right up and be ready to go in a minute or two down into the 50's as well.