He had an opportunity to race in the 1970 Indianapolis 500, but during the first lap of his qualifying attempt in his Eagle-Offy the yellow light was shown and Adamowicz slowed. However, the yellow was an error and Adamowicz was ordered to continue with the other 3 laps. The first lap,  slower than his others, dragged down his average to a point where he was bumped from the field.
He had a chance to participate in the 1970 Indianapolis 500, but during his qualifying attempt in the Eagle-Offy, he slowed down due to an error. He was then ordered to continue with the remaining laps, which negatively impacted his average and led to his elimination from the competition.