go with the t3 for ur sohc, i ran a t3/t4 on the same motor an i didnt hit boost 2 second gear cuz the turbo was so big, an if u get it tuned u will have 2 chip the ecu, get sum1 2 tune it on chrome an u will be str8,you can daily drive a turbo car jus drive normal an ull mostlikely stay outta boost, talk 2 vega or John from modified racing they both do awesome tunes