How much can I amp up the horse power on a 97 ford v6 probe GT?

I have Ford Probe GT and the current horse power is 164 and that is the factory set I was wondering how much horse power can the car achieve and what would I do in order to bring it up to the maximum horse power it can achieve?|||A turbo was an option when new. Maybe kit available or a add on super charger kit. Without modifying engine not much else.|||intake/headers/exhaust/port and polish. cams/ cam geared cam shaft/ and you should be good with about 190 to 215hp