chipped ECU

i am planing to turbo my teg. i am in the process of doing an ls/vtec converson so in the end i will have a obd1 ecu in the car. i was reading in another post about having different chips made for different boost levels. i know that the ecu has to be socketed and things like that. but i dont know exactly what to do. if some one could direct me to where i could find out how or tell me that would be great and where do u get the different chips for different boost pressures?
thanks

Go check the sponsor forum and hit the one for Xenocron. That guy seems to know his shit.