i wouldnt see the problem in running a different hood since the vents in the front of the hood are pretty big and go directly to the motor, i think it gets alot of cold air directly threw there so i'd at least try the hood out. about when they started the vents, my 1990 jag has them, but it doesnt go as close to the shroud as my Z does i'd think that you would be fine if you ran a different hood, if i got a chance to get a different hood i would since mine has a crack betwen the gauges and the paint is faiding