i just got three parts engines from a guy at work. one is complete and fires on spray. it is a 5hp briggs with a 3/4 shaft. what is differant to me is the carb setup. the carb is mounted to the tank with a tube feeding directly to the carb into the tank. straight pipe straight down from the carb that is part of the tank. i cant find any numbers on the motor except for it clearly says briggs 5hp. any ideas? im thinking i just scored a motor that will run with a little carb work. just gotta find a source for a carb kit for this odd ball design.