slant 6 rebuild and upgrade list

Well, it sounds like did not even have the intercooler in '86.... it just got better! You are right... it has been years since I looked and it appears the 14g's are no longer around. How things change!

The 16g's look to be still pretty common. Looking at the maps, they are not all that different. If you are going that way, then I can recommend the 16g Super for the low end spool up, which I what I have in my rally Starion. Here is a place that sells one with an 8-10 psi wastgate integrated. They also have Super 15G's. Later, you can put in a controlled, adjustable leak on the pressure line to the wastegate and raise the boost level.
Hahn Racecraft - Automotive Turbosystems

And here is a place that sold nice down pipes with O2 sensor bungs and other stuff: Top end Performance. They have been around for quite a while and are (were?) racers. It looks like they are selling T3/T4 conversions for the StarQuest engines now but they used to sell the Super 16G's. They have a lot of parts and pieces.
Top End Performance - Turbo System components. Turbos, Wastegates, BOV's - Performance Brands

BTW, have you been on www.slantsix.org to see what is cooking there?