I for some reason though I ran my lrp x12 8.5 at 26/78 and it never got hot in blinky. I just got a viper 8.5 (never buying a lrp motor again, it self destructed during warm up before lining up my best start at the newest surface at the local track) so am I going nuts and should be running the stock spur? 22 will not fit with the 78, 26 is the smallest