Link to free air density tuning info for drag racing at NHRA drag racing:
Las Vegas Motor Speedway, Oct. 31 - Nov. 3, Las Vegas, NV
Map location, air density, density altitude, grains, forecast, historic, & metric data "for good spark plug readings":
https://airdensityonline.com/track-r...otor_Speedway/
air density density altitude grains forecast:
https://airdensityonline.com/track-f...otor_Speedway/
air density density altitude grains historical (you can go back several years):
https://airdensityonline.com/track-h...ay/2019-10-31/
air density density altitude grains current metric:
https://airdensityonline.com/track-r...otor_Speedway/
racingjunk air density article:
https://www.racingjunk.com/news/2019...all-nationals/