Hi

I have to agree with some of the issues Chris mentioned.

After I found the air leak I didn't think the split hose would cause such a violent reaction to this engine. However, the garage fitted the new hose, they gave it an extended test drive and reported it to be mint. It is now back with the owner.

To answer the question about the vac. There were 2 places to take a vac reading on the manifold. One is at the center top of the manifold and one is by the throttle body, both these places showed a good vac.

My theory is that both of these points are up stream from the split, thus air is passing through the manifold [through the throttle body and the split hose] and past these access points. I could be wrong, but I have no other theory.

I think a discussion about this is a great idea, I haven't come across this issue before and would like to be sure of where we are at.

Regards

Simon