[wbnapier]

No noise. Just a weird feeling in the clutch when I downshifted then lost electrical power.

I tried to restart, but the starter was unable to turn the engine. This was burning up the starter, which resulted in an electrical burn smell. So, my first thought was that I fried a wire.

When I got home, I pulled the spark plugs, drained the oil, and cut open the filter. Nothing bad / abnormal in the filter.

I'm able to push the car around the garage in neutral, so I'm pretty sure it's safely in nuetral. I'll verify later.

I was the one who assembled it. It's likely some error I made. I know I didn't do a perfect job, but I can't think of anything that would have resulted in a seized engine. Every bolt torqued to spec. Every clearance checked. Rings gapped, cam degreed, pre-load set, etc. I didn't cut a corner on any part. ARP, Butler, Ross, forged crank and rods... I rebuilt the carbs, changed jets, idle circuit, rebuild MSD, the list goes on and on.

I'll pull a valve cover, who knows, maybe something simple.

As for spark plug gaps closed, what could cause that? I thought physical intereference from a bad timing event would be impossible?

Yes, I need to walk away and reassess. Unfortunately, my logical mind tells me that I simply don't have the time. Between work and family I was already pushing it on this project.