Demon Carbs

Same here, had to drill. I Took measure(the distance from centerline of the shaft?) from holleys mopar adapter, so the travel of the throtle cable remains original. I Have also Lokar kickdown, it didn´t quite open to me how it should be assemble(correctly?). I Put short extension on the throtle lever(lowest hole), to pull kickdown. It has worked for 4 years! Just remember measure throtle stop,gas on the floor=butterflies fully open, so you cant brake your throtle cable, or worse, jam your butterflies open!