Just as an example:
I had an 8.8 with 33splines, 3.89 gears and a spool (c-clip elims, etc), best I cut with it was a 1.29 before I tried to put it through a guardrail but it had more in it.
When running the SS class I had to add about 220lbs of lead to get it to make the 3200 with me in it (weighing 160ish).
Didn't have any major mods from a "lightening" standpoint, removed the heavy steel bumpers, fiberglass hood, race seats, etc.
all steel cage, blah blah

coupes are light to start with...

hope this helps give you an idea.