Nice ride..
THe power potential for the GLHT is a blast..
Ive seen a heavily modded Omni blow the doors off of a ZO6, it is doable.. there are videos oline for me to link to ya for the non believers..
Get yourself the late model 2.5T1 or T2 intake manafold so you can convert your T1 suck through to T2 blow through..
You can rotate the Garretts housings for the T2 configuration easily.. Add TPS wiring to the excisting wiring harness and a charge air temp sensor and your ready to roll.. add a stage 2 mopar ecu (under 200 bucks) and your set for 14psi.. Fun cars..
I swapped in a 2.2 T2 setup into a Dodge Rampage as well as a few other things.. Its running off of a 1988 SMEC ecu and using a 1988 LeBaron wiring harness..
Can you believe that the truck is exactly the same as your GLHT from behind the seats forward?
heres a few links to check out incase you havent seen em yet..
www.thedodgegarage.com
www.turbododge.com
and search for "team omni" L body specific mailing list..