Séb

It's important not to forget to install the spacer between pump and block when replacing the pump...this reduces the actuation lever excursion and thereby the pressure...I really don't see how the pressure can all of a sudden increase if you installed the spacer and haven't changed anything. It just sounds like the OE bowl valves leaking (common phenomenon).

I'm a big advocate of installing Grose bowl valves and a post pump filter...in my experience it doesn't take much at all in the way of contamination to hold open the OE bowl valve (you don't mention which type you have)...and a post pump filter is cheap insurance...I prefer the Grose-bowl valves which use a double ball bearing for sealing instead of the conical neoprene...I do believe George and I dissagree on this, but (with a post pump filter) I have yet to see these leak on ANY of my cars...and that is the satisfactory result I am looking for!

To get the car home, I suggest you remove the bowl caps, inspect for / and remove any particulate contamination from bowl sump (either side of jet feed), also blast some carb cleaner through the bowl valves to flush them, and install a post pump filter (those inexpensive, see-through VW ones you stick in between a cut fuel line seem to work just dandy). Reassemble, start, and doublecheck before taking that long trip...a cheapo little fire extinguisher might be a good investment right about now!

Cheers