Need help with the 3.7L

If you're running the Holley single barrel 1920, I'd take it apart in the very least. It has a few places to get clogged up. The accelerator pump could also be leaking out the back, or the economiser on top. You could also have bought it and the previous owner put too big of jets on it, or way small depending on when exactly the issue occurs. That carb is super easy to take apart and clean as there are only 3 pieces - the carb body, metering thingy (block?) and the float bowl cover.

Another thing to check would be the float and needle and seat. Once you open the cover you can see the float, needle/seat and jet, accessible with the carb still on the car - easy.