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Re: found vacuum advance unit # 2907 on a turbo convertible Posted by 900 Aero [Email] (#425) [Profile/Gallery] (more from 900 Aero) on Thu, 20 Sep 2012 19:22:25 In Reply to: found vacuum advance unit # 2907 on a turbo convertible, johnd, Thu, 20 Sep 2012 14:07:12 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Assuming you're referring to the number on both sides of the actuator arm the most common 16 valve ones are 2965 and 2907. The one with the stronger retard side spring that comes on the 010 distributor is number 2973, if you find one of those grab it! Typical 8 valve ones are number 2877 and there's a real early one with a much stronger spring that's longer than the 010 2973 spring. I'm going to try one in one of my Adjustable Ignition Diaphragm (A.I.D.) upgrades when I get a chance, probably a better yet retard curve?! Anyway the 2907 is the same as the one that came in your car
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