I contacted these folks about what the advance curve was on their unit. According to their web site they respond in 24 hours. Well it's been a month or two and I have yet to hear from them. All factory HEI distributors to some degree are setup for emissions control, that's what they were designed for. That is why they will have less advance both vac and centrifugal, but hotter spark. If you go with a factory HEI have it recurved. This also (though I don't have one) a good reason to go with a Pertronix. IMO

Larry

Last edited by LGriffin; 04/04/2008 9:52 PM.

I don't own a vehicle that isn't old enough to drink.