Without knowing a lot more details can not give you specifics. Recommend the Summit Racing site and make a selection there by using the filters they provide based upon other component choices, camshaft, compression ratio desired, intake choice, and type of usage the car will see, street, street/strip, strip only.
You need to know a number of measurements to calculate the compression ratio. The machine shop that did the work can supply you with those numbers or you will have to do it yourself.
The link below explains the process.