I use elephant ears and haven't had a problem, if you look in the tech section on BBD, It shows you how to make and fit them.
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