You have a lot of wattage for a tent so keep an eye on the temp. Also, height issues should be your main concern. Figure the distance from the floor to a point 8-10 inches from the bulb. That is as close to the bulb you want your plants to get. Once you have that measurement cut the number in half. That will give you a height to move them from veg to flower. Don't forget to account for the height of the pot. I've got about 5 1/2 feet from my flowering platform to the line for the bulb. I veg until they are 2 1/2 feet or so then move them to flower. I know they will pretty much double in height at 12/12. So take these factors into consideration as you attempt to max your yield.
Good luck, BigSteve.