You should really give more information about what you're tuning, mods, etc. up front. Save everybody the time and trouble of going and reading the introductions forum.
So you're running a '95 LT-1 with the 292XFI? I'm interested how this sounds and smells at idle, I run a 280XFI N/A with 42lb injectors.
Anyway, going from 24lb to 30lb injectors isn't a big change. 30lb to 60lb you're going to have all sorts of starting problems that won't be addressed by simply changing the static flow constant. The prime pulsewidth table will need some tweaks, and it has it's own multiplier that will need to be scaled based on the change so you don't end up flooding the bejeezus out of it. A couple years ago kur4o and I worked on this and as a result I built a spreadsheet that may save you a bunch of time and frustration. I'll try to find the thread and update this one with a link. But if I forget to let me know and I can probably find the spreadsheet easier.
Edit: I located the aforementioned thread and realized it wasn't focused much on the start-up (prime pulsewidth) tables. Gimme a day or so and I'll write up a readme for the spreadsheet and put a link to it all in my signature.
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