I am hoping someone can tell me what additional advance should be gained once the vacuum line is reconnected to the canister on the distributor, after having set the timing.
I have a 66 with a newly rebuilt 454. While trying to set the timing (HEI is from a small block I think) at 8 or 10 degrees, as soon as we hook the vacuum line back up, the RPM increases by 800. Also, the vacuum advance readings shoot up an additional 18 or so degrees. This doesn't seem normal (from experience) and I was wondering if my vacuum canister may be the culprit.
Any help would be appreciated. Thank you.
Ian
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As an edit, I have the vacuum line attached to the ported vacuum on my 750cfm holley as Pat suggested (Thanks Pat). Could it be that vacuum is sneaking past the throttle plates?
[This message has been edited by Ian (edited 06-14-99).]
I have a 66 with a newly rebuilt 454. While trying to set the timing (HEI is from a small block I think) at 8 or 10 degrees, as soon as we hook the vacuum line back up, the RPM increases by 800. Also, the vacuum advance readings shoot up an additional 18 or so degrees. This doesn't seem normal (from experience) and I was wondering if my vacuum canister may be the culprit.
Any help would be appreciated. Thank you.
Ian
------------------
As an edit, I have the vacuum line attached to the ported vacuum on my 750cfm holley as Pat suggested (Thanks Pat). Could it be that vacuum is sneaking past the throttle plates?
[This message has been edited by Ian (edited 06-14-99).]