I am currently running drifter coils in my car at the moment and as best as I can determine they work exactly the same as the ford ones despite apparently having slightly more windings and better insulation. The supplier of these coils can not tell me the ideal dwell time per volt.
Supplier --> http://www.autotradqualityparts.com....ncluded/268245
I think I will have to set up an oscilliscope to measure the current in one of these coils while the car is idling. I should then be able to increase the dwell time until the coil charging slope shown on the oscilliscope flattens out indicating that the coil is fully charged.
Then I can compare this coil with custom dwell time to the stock ford coil and the stock dwell times