what kind of h.p./torque can i expect??

:yes guys its another how many horsies question, only diffrent, it's mine.
I have a 75 vette coupe ,010 high nickle 2 bolt main block. with 30'000 miles. 882 casting heads 1.95/1.6 valves. ported , polished, gasket matched.a 460 lift cam(not sure of duration).performer rpm dual plane intake,holley 680 d.p. with vaccum secondaries.headers with 2 3/4 collectors and x-over 2 1/2 " exhaust. a 350 turbo tranny with shift kit/and 2600 stall convertor, 3:70 rear end with 295/50 15's on rear. what kind of power will this create, h.p. torque,times etc .
did i make any mistakes?? is there anything i'll need to change??

I cant drive it till next summer so i would like to get an idea before then.
c'mon experts, let me benefit from your experience as i have precious little to draw from. thanks mike.:LOL: :confused: :HMMM: :whacked: ;)

bump... c'mon guys help me out, I can't use the desktop dyno . MIKE(I'M ALSO COMPUTER DUMB.)