I have an 1990 Integra LS. I bought a head with the following numbers: Pr3-3 And a date stamp that read: 9|9 0|4 0|1 9|0. I have been told that it is a 1999 civic Si head or a Type R head. I need to know what is the next step for the ECU part of the swap. I already have the cams, Springs, Retainers, Valves, and Valve cover. I would like to go with the Hondata s300 but I need to know if I need to get a new ECU or if my existing one could be programmed.