Agree, that the only way to know for sure is to pull the head. From what I've read, it's more economical to just get a rebuilt head, BUT I don't feel the rest of the car is worth it considering the low compression on the remaining cylinders. plus timing belt, PCV, alternator, set of tires, etc .....

#5=120psi, #4=120psi, #3=145psi, #2=160psi, #1=80psi (before the total loss)

I picked-up a '97 GLT about a year ago that needs some work, but at least the engine is in better shape + Turbo, so that where my moneys going to go.

The '97 NA 850 just became a parts car.

Was just wondering how something like this happens and how to avoid it in the future.

Yes, maintaining used is better than buying new, but sometime ya gotta cut your losses. Was planning on selling it, but I'll never get anywhere near the money back that it will take to fix.