Shift light for 5 cyl?

[Frederick Smith]

Now lets see, the crank gear is small and the cam gear is big. So....if it
takes two rotations of the crankshaft to turn the cam shaft once, then the
distributor turns once (1/2 speed of the crank).

The distributor, driven by the camshaft, turns once per camshaft 
revolution and produces one spark per cylinder for every two crank 
revolutions. No spark on the exhaust stroke, at least I hope not. 8-P

Smitty