Beer pumps are very powerful and tend to require additional restriction. Calculate as you would otherwise and then add an additional four feet of 3/16".
Yes you can supply two faucets from one pump. Calculate restriction for each run equally and apply rule above. Begin pressure in the high 20's for Sureflo and adjust up until flow rate is desired (128 oz / min.??).
How long of a system do you have and are you dispensing pitchers / high volume? If the pressure to the kegs is not ideal you will have dispensing issues with the pumps.
Scott Zuhse, Instructor
Micro Matic Dispense Institute