for ct26 upgrades i would just get a turbo shop to upgrade it... there's quite a few options
easy to tell a turbo a
look for the airflow meter in the intake pipe... if it ain't there then it's a turbo a... also look for the map sensor on the firewall
if someone has a turbo a motor but put their harness on it you may find the throttle body is larger than stock...
also i believe there would be an air intake temp located in the intake manifold