I think mechanicals advance at a predetermined rate and vacuums advance in relation to manifold vacuum which is roughly dependent upon throttle opening. I have heard that it makes no difference in anything but race applications. Ditto for vacuum/mechanical secondaries in carbs. I was talked out of mechanical advances for either/both years ago but I can't remember exactly why...
----- Original Message -----
Sent: Monday, October 03, 2005 3:08 PM
Subject: Re: [Chevelle-list] Distributors 101

As a follow-up question, please explain to me the pros and cons of vacuum vs. mechanical advance.
 
Larry
----- Original Message -----
Sent: Monday, October 03, 2005 3:03 PM
Subject: [Chevelle-list] Distributors 101

OK  next question - which distributor or type of distributor would you recommend for the 396 I'm building? As I mentioned before, I'm looking for something I can drive now and then and take to the track once in a while for fun. I know I won't be putting anything in with points. I'm done with that!
 
Thanks,
Larry

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