New Tiny Tach!
#11
#15
#16
they're pretty accurate. it uses a piezo element (kinda like a watch) everytime fuel is delivered via #1 inj line it senses it. and then shows up on the display... we used one hooke to a timing light to time one of the engines in lives out there to OH... cant remember which it was; basically anyone tht has inj lines... but i'm going to guess it's the 6mm... it fits on the outside of the inj line. and i dont think they run 1/4 line on the VE
#19