For what it is worth, I just picked up Mark's Mitchell's Turbo 400 from TSI Transmissions in Burnsville, MN after undergoing a total rebuild. I spoke to the owner, Duane about my restorations and his cars. Besides the fact that he currently owns a mint Cortez Silver 69 L78 Nova and talked to a Green Yenko Deuce owner from Bloomington (Earl
) said he was tall and friendly, at the Nova Nationals a couple of years ago, he also mentioned he owned a Black 69 L78 300 Deluxe Chevelle back in the 80's. I mentioned the fact that only three were known to exist and he was curious if his one one of those three.