Caddy fuel injection is crapped. Runs, but not well. Would love to run it, though.
Pat can probably give some VR6 launch techniques, though turbo might be a bit diff than supercharged. Personally, I like holding the car with the e-brake so I can have both feet on the important pedals at the line.
The start line is usually stickier than the street, so bogging is more likely, fyi.
I like your 6psi to 16psi idea.