New 5.0 coming - Est. RWHP

[B2r3y]

I have a friend that wants to sell his 92 GT 5.0 aod and get a 90 or 89 GT 5.0 T5. He has made out a list of parts he is going to buy for it and put on and wants to put out about 300 rwhp. With these mods i dont know if he is pushing on 300 at the fly or what but could someone give me a estmate of the fly hp and rwhp with these mods and what kind of 1/4mile could be achieved with this setup :

-140 amp ALT.
-70mm Mass Air
-70mm Throttle Body
-Mac Fender wall Cold Air
-24lbs/hr injectors
-Aluminum water pump
-Underdrive Pullies
-3.73 Gears
-Aluminum Radiator
-Hooker equal length shorties w/ X pipe / Dual chamber Flow cat-back
-KK Clutch setup

What else should he do if this does not make 300rwhp?
thanks
bryan