These are mine thoughts on the AFR requirements.

Dangerous >= 13
Pig Rich <= 10.5

My ideal is:
12.5 boost only
11.5 nitrous and boost

 

Just out of curiosity if 14.1 or 14.7 is Stoich, then why is 13 dangerous? I'm having to stay out of the throttle until Doc gets down here and we can put in my 42 lbers and reflash.

 

hmm thats kinda what I was thinking...

 

you dare argue with the WOP?

bad idea...he knows more then you or me and dam neer any body else on here(if not all) in regards to our cars.

now to answer the original question NO i dont think its a good idea.

yea our cars run rich for MOST the RPM band but its possible to get our injecters in to the 80-90% duty cycle range...our injecters go static around the the 94% mark.

after all GM would not of included biger injecters with stage 1 kit IF our stockers could handle the higher revs.

also another 500-550 engine RPMis at least 1000 or so more blower RPM so yea your boost numbers will increase as well.

thus the need for more fuel also goes up...and i cant see the stock injecters beable to handle any of this.

the boost solinoid bleeds at 16.6lbs if i remember correctly(correct me if i'm wrong)

I'm guilty of runing my injecters WAYYY past the static cut off many times!

i've seen my HP logs go into 115-118% when i had my 43's and 2.7 plus one HELL of a tune.

take this as you want but i DO NOT recomend doing this...at least for any sort of a prolonged time.

 

The supercharger will push more CFM but it is still the same S/C to Crank ratio, so it will not increase the boost, it will just provide the full 12 psi throught the extra 500 rpm.

At WOT you want to run ~11.5-12.5 AFR ratio for a FI engine to get maximum power and not over heat the engine. The leaner you get, the hotter the engine will run. Stoich is theoretically the most complete burn, but not the safest or most powerful.

 

That is unsafe at full throttle . 14.7 is a desired cruise and idle a/f .

Gm included the bigger injectors , because being an OEM and having to deal with warranty issues ect ect , they have to be completely OVERKILL safe on the tune .