I have had a chance to get home and put a couple shots of jet fuel in the tank which cleared things up a bit. I do recall there may be one other reason for the irreverent coolant posing as fuel. Two problems can occur with the intake manifold. It is much more prone to warping if not torqued in the proper sequence and if you use the cork as a seal at the front and back of the intake to the block. The cork has a tendency to "hold" the intake out giving false torque readings and can also cause misalignment. Most builders will just use a big bead of high temp gasket maker instead of the cork.
I may be back if I have enough fuel to support the after burners.
