Bill, please could you take the time to answer the following two questions. - Did you ever try running your wider gapped plugs with the stock coil? - Did the engine ever run badly with a healthy OEM ignition system and seen to be *fixed* with HEI? I'm not trying to pick a fight, I appreciate you kept your post to the facts, and if the answer to either of the above is a "yes", I'll shut up. I'm sure owners out there may well be interested in upgrading. Personally "if it ain't broke, don't fix it". Ignition isn't like suspension or electrics - if it's working to begin with, there's not a lot you can do to make it work "better". My own experience of "performance ignition" was a turbo engine that just wouldn't take boost till I switched back to an original Bosch coil. Maybe I was doing something wrong. Martin On 09/07/2012 20:48, content22207 wrote: > For the past 8 years I have had very good success with HEI ignition: .05" plug gaps and a higher winding coil (*HIGHER INPUT VOLTAGE*) capable of jumping them. . > --- In dmcnews@xxxxxxxxxxxxxxx, "daveswingle2" <swingle_dmc@...> wrote: >> At the voltages involved a few hundred ohms is insignificant, and the system will only run at the voltage required to jump the spark gap anyway. ------------------------------------ To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnewsYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: dmcnews-digest@xxxxxxxxxxxxxxx dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/