Thread revival! I'm just after some opinions about an appropriate redline on my engine. Drmini by the sounds of your post the answer might be 7000-7500rpm...
I have the electronic rev limiter set to 6500rpm. But I find at full throttle - pulling onto a highway for example - the engine seems to want to pull beyond that rpm and the limiter feels like it kicks too soon. (I should also say I don't spend a lot of time up there as it has a nice low and mid range and 2.9 diff).
I note you mention cam and springs in your post. My cam was ground specifically to match the supercharger and the thick linear torque and driveability. So it wouldn't be considered wild like a performance NA cam. Running double valve springs and 1.5:1 Yella Terra roller rockers.
Here's what the curve looks like so you can see what it does up that end of the rev range. The drop off would either be the dyno operator getting out of the throttle or the ignition rev limiter dropping cylinders.
[Other info if you need it - 1100S 1275 block with +.040 forged pistons, I/H beam rods, std crank with a few little things done (but no major wedging), lightened flywheel, rotating assembly dynamically balanced together. Electronic ignition, but timing set by the dizzy curve and the points are used to send a low-level signal to the ignition module. 8.6:1 compression, running measured 7psi boost from charger, water injection used to cool charge. Okay that probably more than covers it.]
