Have you cut the engine and done a plug check before driving back to the pits to check it's not lean or pig rich.I usually take a spare plug and a small wrench, swap it over and check it in the pits. I also had a problem with my motor laying over and it was the carb too close to the scoop. I ran without the hood and it was back where it normally is.
Mick

69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200#
best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft
best 60ft 1.36