I thought the smaller venturi on the 950, made for a better shift recovery.
Andy, what exactly do you mean by a larger engine.
500 and up ?
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