You should be high 14s or low 15s near sea level, mid-high 15s at your alittude I'd think.
I'd start by replacing your plugs and wires, fuel filter, air filter, etc.
Then buy a scantool, check your overall timing advance and check for KR (knock).
If your in the clear you can move onto an intake ($200US) and a modular pulley system ($100 US)
Check your timing and ignition advance again. Then you can move onto things like Headers, PCM, rockers, etc. Next thing you know you will be in the 13s.
What does your boost gauge show right now at wide open throttle?