question about my sunleave 400w hps setup.

this is my first time switching form cfl. I have the light 14 inches from my tops, the temp runs at 82-85, is that an ok temp.. And also, the closet is 3 deep, 5 wide, 5 high, am i better off with two huge plants or how many can i cover with that ,, im looking for max yield, can i get 5-8 ounces a plant if i grow two monsters.
 
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