Excellent posting PM - sounds like a superb trip and an appropriate way to dial in your new small-block.
Nothing like a comparison, but I remember doing a track-day at Oulton Park a few years ago. I had an '88 IROC at the time and had the somewhat double-edged sword experience of being tutored by one Tim Sugden - a decent Bradford lad, struggling for a regular drive at the time.
I did a couple of laps, then we swapped seats and he showed me why today, he's EMKA's #1 driver and I'm selling stair lifts.
It was an education that cost me a set of Goodyear Eagles and a complete brake overhaul - notwithstanding a change of underwear.
Very envious of your 'ring' piece.