I like this discussion, should be in a new thread though. All this guy was asking was could he get the same results from a meth/water kit that he would see from a bigger intercooler. The answer is yes you could, you will decrease air inlet temps with a meth/water kit, which is what a bigger intercooler will do also. There are many variables to weigh when making a decision on what to use though, but that is the simple answer.
That being said I would go with a larger FMIC before a meth/water kit. A big ol FMIC is a no brainer, bolt it on and forget about it. You can think about a meth kit later in the game.
BTW methanol has an octane rating of about 140 not 100. That would make sense since thats what alcohol burning dragsters use.