Found more evidence that the engine tried to jump out of the car; the stainless braided fuel line connecting the fuel rail to the chassis-mounted fuel pressure regulator apparently gave the regulator one heck of a yank. The bracket mounting the regulator was significantly bent; I’m surprised the hose end didn’t break or pull out of the hose. After a tremendous amount of work the car is mostly back together, with about half a dozen things replaced, modified, or upgraded. While the body panels are still off the car it was started and allowed to warm up. No antics, though I still need to run up through the rpm range and watch the alternator to see if it’s going to be okay with its modified mount. Oh, and there’s still one modification that you don’t know about yet 🙂