4x4 tent, open hood. how many CFM's?

Thinking about starting a a subcrop run in a 4x4x6 secret jardin tent. With a 1000 watt dimmable mh/hps. With an open hood wing reflector.
How big(CFM'S) of an outtake fan you think it'll take to keep temps in mid to high 70's.? Would a 435cfm hurricane work? I could also add another inline for intake

435cfm would do the job fine

noysy said:

435cfm would do the job fine

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Thanks bro. Appreciate the insight.

Yea should do good with that maybe maybe even an intake fan dialed down so the tent isn't completely caved in from the negative pressure.