Complex sentence: It took the team until the middle of the season to gel, when he broke his 64-race winless streak at the Pocono "Van Scoy Diamond Mine 500" in June 1986.
Split into simpler sentences: It took the team until the middle of the season to gel. The team suffered a 64-race winless streak Richmond that was finally broken at the Pocono "Van Scoy Diamond Mine 500" in June 1986.