Interesting information. I didn't spec the No-Gap rings....imagine he's aware that I probably won't be running that much nitromethane in the old truck!!!
He did mention that proper break-in was critical. His shop builds up some pretty radical engines so I will tactfully gather a bit more info. Don't want to step on any toes, as I'm by no means, that well versed in high performance engines, but I wholeheartedly agree that there is no earthly reason for building in any future problems.
Thanks for the heads-up.