The more I think about it the more annoyed I get at myself for not paying more attention to the speedo and tach. I honestly don't know what was indicated; maybe it was higher than 186 but it couldn't have been by much if it even was. Like I said, I checked out the speed at a hair under 180.....178 or 179, and then switched my eyes back to the road which seemed like a pretty good idea because it was coming at me faster than I imagined it would. If I had been cooler headed I would have at least checked the numbers, but I was running out of road and courage pretty fast.
The road was I-80 around Hetlerville, PA, at about 7 am. It was one of those gradual down-hill's that slowly changes grade to a gentle uphill, so you could: a. see for a long way off and play your odds with the man, and b. the little bit of downgrade got me going a little quicker. I really wish I had lingered around for a couple of seconds more. Maybe the speedo healer is in order. Don't know much about them.
And I never thought about a turbo and the limiter. If it in fact leans out the mixture and all of a sudden you've got all those extra cubes of air at that higher psi.....sounds like a 1400 cc grenade between your legs. Just add nitrous!