Great work and great progress! I'm having to live any progress on my own HC Cuda project through your pics until my home remodel is done, so please continue posting. :)
Although it can get expensive, I've always replaced TTY bolts to be on the safe side, even though I did not fully understand the concept. Thanks to RealWing for the informative link. Losing a head bolt could blow a head gasket, but losing a main bolt could be catastrophic, I would think.
Hemivaliant57, it appears the intrusion into the firewall is largely the passenger side of the water manifold, is that right? Doesn't look like the driver side intrudes. (close, but no intrusion?)
I've already completed considerable mods to my firewall, so I REALLY don't want to tear back into it if I don't have to. I'm considering a mod to the supercharger. Will post up what I find if it's possible.