If this carb is going on a boat you need a marine certified carb if you are ever inspected by the Coast guard that is a violation if it is in a closed eng room this is a vary unsafe thing to do marine carbs have a spefic float bowel vent there are many boats that blow up at start up gas fumes contained in a closed area are just like a bomb and kill a lot of people every year gasoline boats are vary dangerous and you'r insurance is void same thing with alternators and starters and ign systems you can't use automotive parts it only tskes one spark to ruin you'r hole day or life