13b Knock?
 

I'm reasonably new to rotarys and am building up info about them as I go. However I'm stumped at 'knock' on rotarys, I've been told that rotarys don't get knock, anywhere, expect a few threads on here beg to diff.

Anyway my '96 FD is running a power fc, and one of the readings on the hand controller is "knock" (along with injector duty, water temp etc) and this got up to 74 the other day, which I guess is about three quarters of ther bar that flicks across. My question is...is this bad, should I be worried? It only does it very quickly and occasionaly, I've notice it get to around 30 before that on the hand controller.

So basically, can anyone fill me in and shred some light on this?

Thanks

Seemed to have found info I am after regarding this with further searching.