Joe,
As I said I was trying to work from memory, sometimes there are cloudy days, others are partly sunny.

But I do know from all the research I just went through on the 68 Team Shelby TA car that Smokey was bouncing back and forth and doing a bit of Moonlighting for Chev that Ford wasnt aware of. No matter who had Smokey, the other side always wanted him. I believe he was working for Chev with the Hemi 302 which took place as early as late 67 to early 68. But, I may have the info all screwed up as trying to keep up with Maynard while he is describing his tresure trove is like listening to a 33 record at 78 speed. He has two of these engines, if I remember correctly at least one was all aluminum. I need to call Al anyway, I will ask him about these engines and re-post.
Motown