I have a 318 v8 in my boat i would like to make it run strickely on hho for a period of 3 hours ! The plan would be to put a large hho generator with enough battery and charge the battery at dock over night or would it be better to have a smaller generator "220v" running over night and using a refrigerator compressor , compresse the hho into tanks and intall a propane carb on the engine ?