On Thu, 30 Sep 2004 12:36:59 -0400, "Paul" wrote:

Even though I thought that it is least probable, I have to say that leaking
manifolds/raisers (when hot and under pressure) would be the most likely
explanation. Now I need to figure out how to test them properly.
One last thing to do would be to pressure test the engine agaiin when hot.
My initial intake theory seem to appear less likely now although still not
impossible, not yet. It's really getting annoying

I totally understand. I went through something similar last year with
a family member - ignition problem which took forever to find.

Annoying as hell. I mean, it's only fuel, air, spark right? :)

Good luck.

Later,

Tom
-----------
"Angling may be said to be so
like the mathematics that it
can never be fully learnt..."

Izaak Walton "The Compleat Angler", 1653