The calvert front shocks would help the launch on your car, although one or two guys have tried them
on heavier cars and not liked them.
Personally i love mine.
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