I don't think I can ever remember being able to start a car after sitting a month without cranking a bit first to get fuel back up to the carb.
factory or holley.
next day sure, maybe even a bit later in the week, but not much after that.
have you been able to start it sitting like that before? you might be chasing nothing is what I am saying. if you never did it before, it might be normal. if you can't do it tomorrow, then I might dig a little.