Norm? Oh, youre in big trouble now. lol
The trick is to run near zero,when the power is running through it. If youre running slanty springs and no snubber this might require a ton of nose down.If youre running SS springs and a snubber 4 or 5 might do it. If youre running a stick car, coming off the line at 5000, and really hooking, you might need 7*. If you have 300hp, or 700 hp; new numbers. Auto or stick? new again. Street or track? new angle. Multi-link, ladder bar, snubber, slapper bars,change in ride height due to spring change,or,heaven forbid, air shocks? All could be different.
So where is normal?
And if your running a typical spring set-up, its not something you can just change at the drop of a hat.
Sorry. I just couldnt help myself.