Thanks to all that chimed in!
My plan now is to begin by:
Replace UIM gasket and LIM (before they start to leak)
While I'm at it, install ported LIM and replace UIM w/Dorman
Install front PEM
Change to 180* thermostat
Based on agrazela'* work in different thread, I should get a real nice kick in the @$$!
While it is apart I'm thinking I should add ZZP ER Rockers and replace springs.
After that I'll probably drive it a while.
Then consider a reprogrammed PCM or get me a tuner.
Look into a hi-flow cat and how it works w/ CARB rules.
Before I do anything with a TB coolant plug, heat shield, or ceramic crossover, I'll do some more research to find out about their real effectiveness.
I have a job to complete (for work) before I will have time to dive into this so I won't be turning any wrenches until June.
2001 Bonneville SE - Dark Bronzemist Metallic - Mods: 180* thermostat, iPod adapter, Digital OnStar Upgrade
Planned Audio System upgrades: Front & Rear 7 Band Equalizer, Amps, Hands Free Bluetooth Cell Phone kit
Planned mods: Front PEM, Ported LIM, Ported Heads, ZZP SR Rockers, Aluminum Gaskets & Reprogram PCM