Re: [DMCForum] Timing performance engine (Martin G)

["Martin Gutkowski" <webmaster@xxxxxxxxxxxxxx>]

At idle. Rev it and pressure in intake increases (or for you, Bill, 
vacuum falls). Vacuum is at max when throttle plates closed. At full 
throttle, vacuum is minimum. This is the whole point of the vacuum 
affecting advance and fuel enrichment via CPR.

content22207 wrote:

>PRV produces 17 plus inches -- more than enough to advance a rotor
button.
>  
>




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