Thread: 65 GTO Vac Adv configuration
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  #17  
Old 09-25-2021, 10:30 PM
65sport 65sport is offline
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Quote:
Originally Posted by Bill Hanlon View Post
I'll bet you are not pulling 14.75-16.75 in/hg at 4600 RPM. Probably not enough vacuum at that engine speed to give ANY vacuum advance except when you close the throttle completely
So who are you challenging ?

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