TPS not set correctly and or base idle not correct once hot remove iscv plug and check u have got 850/900 rpm if for some reason you cannnot adjust any lower on idle screw you have a air leak in the intake manifold.

PLEASE make sure your chip is correct for the engine for example a T34/63 will flow a greater volume of air than a T34/48 best to get it checked by rolling road or have a chip written to your spec