John,

Is the Indy not interested in doing it, or just not sure that its the problem. He is probably getting frustrated, he already told you the TC looks suspect??
And you mention that it happened (immediately?) after the tranny and torque converter was replaced, so I'm not sure why that would be an intake manifold gasket - could just be a coincidence. You may want to have the Indy re-install or find another torque converter. I'm not saying its the TC, but its possible that the TC or the install of the TC is incorrect and could be causing your problem. He should be able to find a junkyard TC - to see if it CHANGES the behavior. I'm still wondering why both needed replacement by 90Kmi -its NOT common to replace both at the same time.

__________________
Brian Toscano