What do you think my up grades will do for my car?

Ibought headers,stage 2 computer chip that removes the limiter and and reconfigures my air fuel mixture and timing also tramsmision shifting,and I replaced the 450cfm TBI with a 650cfm TBI.The original HP is 170 what do you think it will be when all the modifications are done?I took the car out on the highway and held it to the floor until the limiter shut me down at about 120mph adn the car was still running stronge before it was shut down.How fast do you think I will go with the modifications?