Quote Originally Posted by firebird77clone View Post
We are splitting hairs, and I really don't wish to discuss electron theory, just wanted to know how to hook a tach to HEI, and if one of those old dwell/timing/rpm meters would work, or if I needed to get a tach
Sorry if my basic explanation was interpreted as theory.. What you're calling "old dwell/timing/rpm meter" IS a tach. The RPM Meter is the Tach. Try connecting the lead to the distributor cap connection marked TACH. I think there should be a selector switch for the number of cylinders too. Choose what's appropriate.