'83 T quad on '73 318

YES, it will run fine, of course as long as you know the carb ran well on the donor vehicle. I'd recommend the stock iron intake as the Dual Port design isn't very efficient and will give mixture distribution issues/less power than a regular dual plane. I don't blame you on the BBD, that carb made my car very dangerous in traffic and I got rid of that thing as soon as I could get my hands on a 4-bbl. manifold.