New vacuum advance unit, no difference

[mike.perry]

You might find the head with a pile of rocking horse poo

[izzi]

Hi, Mike

You might find the head with a pile of rocking horse poo

I did not get your comment, but as I write this the penny has dropped.

At first I thought you were knocking the Mustang or even a Ferrari.Or even you played part of the Godfather.

Head, horse, To much TV quizzes.

Roy.

[mike.perry]

I could have said hen's teeth. Actually my dog prefers to roll in the real stuff, the fresher the better.

[Rob BVU]

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 attempt to explain how the vacuum unit operates and the importance of having the proper vacuum unit part number and code on my web britishvacuumunit.com
Hope this helps
Rob
BVU

[bmcecosse]

An interesting site...... but the units are not inexpensive !