I want to wire up a series of shift lights so I won't always have to be watching my tach while racing. Plus I don't want to pay through the nose for them, and I don't want it to take up a lot of space. I know a lot of you tweecer guys know the voltage/amperes for rpm. Any help? I was thinking of running them in parallel with increasing resistance from one to the other... if it goes by voltage and not amps. 
point me in the right direction?
point me in the right direction?
