wow iam shpcked u have a 1000w in a 4x4 but whatever, if u have an ac hood i would def. run that bc thats what i did for my 5x5 with a 1000hps in it and it use to be like 89 to 92 and bought a new exhaust 440 canfan and use my old 300cfm ative air fan running throught my ac hood and it dropped...