Reply to "DURASPARK DIZZY RPM LIMITS??"

George PAdmin.

Ford used the same centrifugal advance in all of their distributors, but always removed or disabled the vacuum advance in their 7000 rpm distributors. I run the Duraspark distributor (with vacuum advance) to 7200 rpm with no worries. I'd say its OK to that rpm as long as the advance mechanisms are in good operating order.

That extra 1000 rpm (from 6200 to 7200 rpm) is one of the reasons I prefer the Duraspark I ... it charges the coil properly at all rpm. The Duraspark II module does not.

10/27/176:47 PM

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