That is not that great of a manifold, but it will work if you are just changing from a 2bbl to 4 bbl.
You will be fine, just bolt a square bore carb on it and be done.
I am really liking the new 625 street demon carb, it a bolt on, slight adjustment carb, for a daily driver.
Way better than any eldebrock, for the same price.
If you have the carb, at least try it.