Re: 2 step & bad harmonics
 

There's a difference between the older 2 steps and the newer .
Analog to digital . I wouldn't do a burnout with a 2 step , but at launch RPM ( 7000 ) the newer digital boxes are very smooth.

Re: 2 step & bad harmonics
 

One thing I have noticed is the higher the rpm the smoother the 2 step gets or feels and sounds,I have used high side on starting line for long time have'nt had any problems ,but I am only on it from flash of first amber.

I agree completely with that article David Reher had in ND.
I say the lower the rpm of chip the harder it is on stuff
Mike Taylor 3601

Re: 2 step & bad harmonics
 

A buddy of mine just hurt his new 540" bbc by bouncing off the rev limiter. He broke a high quality roller timing chain and bits of the chain broke off and seized his oil pump which stripped the distributor gear and shut the motor down at the 60' mark on the strip. He was lucky that the timing chain did not completely break and bust up the valve train. He made several calls after this happened was told that this is common.