At the time I was running 125hp jets for the Nitrous system I bought from a friend, after he wrapped his v8 tbird around a tree. I had started with the 75 hp jets, but the nitrous didn't seem to make much difference, although all the solenoids were working, etc. I kept trying bigger jets to no avail.
The outfit in Georgia that sold the system to my friend assured me it was safe to use on the SC, as I had serious reservations about that issue. The last time I called them to ask why the system didn't seem to be working, they suggested that my bottle pressure was low (kept the car outside in January with temps around 15 degrees) and that I should warm the bottle in the house to room temperature and then try it.
That worked a little to well as can be seen from the picture of the largest conrod piece I could find after the explosion (I did manage to drift one mile across the main river bridge here, passing everything in site, looking like a fireball, from a second gear tromp that lasted less than 2 seconds).
When I called the Georgia outfit back to thank them for all their good advice, they informed me I should have been using an aftermarket fuel pump as they believed I suffered lack of fuel pressure and lean detonation. I told them that's why I had asked if it was safe, any other things I should do, etc. Obviously I overamped the poor thing.
Did manage to find a '91 SC engine, complete on an engine stand at a local scrapyard, with only 19,000 documented miles for $1500. Pissed me off that I ended up spending another $700 or so for the rack assembly the broken conrods riddled and had to change the junky rebuilt ones three times befor I broke down and bought a new on from ford.