ok, so im doing a crate engine swap into my 40 merc and it occured to me ill need to figure out a way to convert the new EEC coumpters signas back into mechanical movements to save my old cluster from certin death.. haha, so anyway i caled some places that do the resto, this typ of device is called a speedo xbox, and ive tried searching for it, but no go, all i get are microsofts damned xbox ahha so anyone use this and know where i can buy it?