1. get a cable and connect it to TuneEcu. Compare the map to TOD, stock maps or whatever you want. It will tell you alot about the fueling & ignition which would give you some idea of how it's been tuned. From there you can assume away.
2. there shouldn't be any goo around the head. Sure you're not looking at the cam cover?
3. check inside your throttle tube to see if it's had the quick throttle mod done.
4. could've had a 'Tona transplant but TuneEcu will tell you that.