Thank you all so much for the kind words. I'm using an Edelbrock 500. I wasn't really in love with it at first, but it's grown on me. A lot of people say that this is too much carb for a flathead but I feel it's just right, though admittedly it could use some fine tuning still.
I'm still running the stock 3.73s. I have a 9" that I want to put in over the winter. The T87 trans has an absurdly low 1st and 2nd gear, so I might try 3.25s in the new rear