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- Thu Sep 20, 2012 10:59 pm
- Forum: Mechanical
- Topic: New vacuum advance unit, no difference
- Replies: 24
- Views: 6278
Re: New vacuum advance unit, no difference
Hi, Vacuum units don't operate properly with the Weber carburetors. They don't have the proper ported vacuum source at the butterfly. As far as I know, only the SU or Zenith carburetors supply vacuum to the unit as it was intended and regulate the vacuum advance properly. If interested, I made an at...