indoor/outdoor 08

I constructed a grow 4' x 4' grow box. I have a partition wall down the middle. The right side is my flower and left is veg.
Materials used...

- 400 watt MH/HPS dual ballast
- Outdoor pack (Durban Poison, Purple White Widow, Hollands Hope and 5 free thai stick seeds)
- Mylar
- Promix BX
-DNF Nutrients
- 4" cpu fan for exhaust
-10" fan for circulation

The left side im using...

- 4 43w Daylight cfls
- 8" fan
- Mylar

Im currently veggin all of them in the flower room with the Metal hallide. I just cloned all of them last night.
I have an issue with heat.
WIth the door open I have no problem (56 humidity, 71F temp)
But with the door closed it gets upto 90. I am using the cpu fan to draw heat away from the light. Should I make another exhaust going in??

thanks