1965 Le Mans Ferrari ended its 6 year run with a 1-2-3 finish
1966 Daytona 1st 24hr event Ford = 1-2-3
1966 Sebring 12hrs Ford = 1-2-3
1966 Le Mans 24hrs Ford = 1-2-3
after being so convincingly swept 0 for 3 in the Priemer endurance races that Ferrari had owned for 6 years, the 1967 Daytona Ford fiasco of failing transaxles led to such a poor showing Ferrari really wanted to stick it to Ford.
But that result really motivated Ford to re-evaluate the MK-II program because they knew regardless of the transaxle issue the 330P3 was faster, so that drove the push to attempt to fix the J-car.
What Remington & crew accomplished in weeks in Dearborn using the "wind tunnel" in Remington's mind is incredible. At Sebring J-4 outclassed both Chaparral 2d and Ferrari 330P3!