It was a 5/8's runner and reworked to a 7/8's runner never run on a string so the rumor is said. Don London out of Saugas, Ca owned it and there were 2 911 boats. The one you have is the backup boat and will take lots of power to make it run since it is really heavy. The bottom just never quite worked out. I believe that a board member totalled the original 911 race that used to be the record holder before he wadded it up on the mountain in a big old fireball. This can be seen on reruns of RealTv and Discovery Narrow Escapes. I'm not going to mention Acceptence's real name but we know how he drives.