97 GT PI Heads good idea?

IF you can get a deal on the heads then yes it is a nice mod. Even better if you do the work yourself. You will see 30-40 HP increases tuned. Base your decision on dollar per HP. For instance buying new the heads and cams will run you $1300 and and install cost of at least a $1000. $2300 bucks (before taxes) is a bit high for 40 HP. You can find a good used supercharger for that price and have it installed for another grand for up to a 150 HP boost. I paid $250 for some used Comp 262's, installed them myself and gained 20HP on a conservative tune. Bang for the buck there is great.