Well since you aren't compressing the air and creating hot air before it enters the engine any ambient cooling mods won't make that big of a difference. IMO
ya thats what i was thinkin. and a buddy of mine who's got a monsterous blazer and also is part of a race crew and is a tech at my shop said something about a coolant additive that's called -40 and is supposed to keep your coolant running alot lower