I agree with adding the aclochol. What are the cobra/lightings using? Straight coolant, high mileage stuff. I haven't been able to examine one up close.
Now mix that water/aclchol, or better nitrous even Co2, and spray the I/C, you can make that air/air pretty effceient, if all other precautions are taking. Still prefer air/air, and not for bling factor.