octane boosters?

I had a Buick T-type and the water injection really worked nice on it. The knock sensor would back things off and limit power so the water injection kept that from happening. I just used a vacuum switch, a windshield washer pump and got an adjustable nozzle from one of the suppliers of Grand National goodies on the web. (The patio mister idea sounds great!) Took about twenty minutes to install and a week to adjust to work really well. The only issue it ever had was if I was on it hard and then had to brake hard for some reason. The residual pressure in the lines would continue to spray some water into the carb with closed throttle plates, which would result in a real bog when I accelerated again or would occasinally even kill the engine. A rare occurance but it did happen... so keep that in mind when considering the nozzle mounting location for your installation.