I did it cause I did not want to buy an intercooler yet, I am 1000m above sea level, and have a 3.5 " pulley,and tune opf ~ 5-12 degrees of timing wot, I did it to cool the intake slightly, and for the octane boost. It seems to work well for me.

I am using:
- devils own injector 5 gph- oversized I was told if using 100% methanol, I am using 20-40% methanol
- a farm spay pump for 130 psi
- a fuel pressure switch for nitrous safety set to 4-5 psi boost