Its a 2.9 and probably still is a 2.9
Might have been chipped and to check just pop the cover off from above the love box as the chip will be a super chips plug in. At best they only give 5ish bhp in the real world. Would have not been remapped, that for sure
Its also stil got the air box as the first thing most owners do is sort the breathing out with a pair of k&N.
As a run around, they make good cars but as for getting power out of them, short of tt-ing them forget it
24v is the only real way
600 -700 is what its worth as it is id say