Beautiful boa constrictor you have there.
I would not feed more than large mice for the first year, although I don't know the age of your snake.
Suri boas grow slow and there is nothing wrong with keeping them on mice for their first year.
JMcrook and Sauzo are a couple of guys here with some of the most beautiful Pokigron, Suri boas on the board.
They will echo the Gus Rentfro and Vin Russo feeding guidelines that I have followed with my locality boa.