305 Vortec SBC build

[Austin97C1500]

I'm building my 97 c1500 gmc sierra to be a fun daily driver and a competitive autocrosser. It has the original 305 vortec engine and it runs like a sewing machine with 104k on it. I'm gonna do a 411 pcm conversion so it can be tuned with one of the many tuner suites available.
Ingredients:
305 vortec sbc
Vortec heads upgraded to 1.94 intake valves; performance valve job
Lt4 hot cam; 1.5 ratio full roller rockers
Edelbrock proflo xt and ls1 throttle body
1.75 primary shorty headers; magnaflow cat; 3" gibson cat back (installed currently)
Planning on running electric fan

I have lt1 24# injectors that will like be close.
Any insight or guesses about output are welcome.