Almost 50 years of building 727's and I never understood why guys get overlap or flare - then try to fix it with restrictors.

It's all about timing - front servo spring/s rates along with operating lever ratios and front clutch release springs.

Everyone says you can't use a 5.0 lever - can't remember ever feeling an overlap or flare on any six bbl or hemi trans from the factory and sure as hell never experienced it on the track with any race car.

I use a 3.8 lever in most of my builds but only because there is no performance difference between the two levers and the 3.8 are a dime a dozen.