Performance tweeking on stock 93 LT1 w/Nitrous

[93 Formula]

Has anyone had luck in improving the performance in a stock GM car (my case 
is a 93 LT1 Formula) with only mild bolt on additions and/or 150 nitrous or 
less kits?  I am wondering if the GM program is as good as Im going to get 
or I could eek out a bit more performance in the 1/4 with a good ecm editing 
program.
I have the power programmer and have edited a few things manually in hex 
that were needed but havent tried to delve into tables etc yet.   My 
injectors were GM22#s stock, and I changed these to 24#bosch for the juice 
as well as changing plugs, to colder and decreasing the gap. multispark 
digital ignition, better coil, stat, muffler, !cat, 3.73 gears (were 3.23s 
stock) I don't have major mods or even headers (yet). My cars runs a 12 flat 
usually, but wonder if I cant get a tenth out of tuning the ecm anymore to 
fit even these minor mods.. 11s would be nice :-) Thoughts?

Jeff
93 Formula
77 Nova
http://FindFastCars.com

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