Is It Worth It?

If i remember correctly the shift point for those anderson cams is 6000rpm+.
Probably not optimal for your heads.

You're overthinking this cam thing, if this were a high end custom setup, i'd be all for trying to squeeze every last hp out of it, but it's not.

Use the E or the stage 1.

No, the N41 is designed for 1.6's and the N21 is designed for 1.7's. The Anderson cam is a good choice. Yes, it is designed to be shifted around 6200 RPM. It is not designed to make max power at 6200 RPM. That would fall somewhere in the 5000+ range. The idea behind their suggested shift point is to keep your RPM's in the power making range when you go to the next gear. Shift at 6200, fall to 4400, still in good power making range (these are just examples, obviously depends on your gearing). The N41 and the N21 were designed with Gt40 heads in mind. The reason the N21 is designed for 1.7rr is because the stock Cobras came with them. The N21 was designed as a cam for stock headed Cobras with some mild mods.

I ran the TFS 1 up until recently, it is a good cam. Makes power up to around 5500RPM. I just recently swapped in the N41, not that noticable of a difference in the drivability market. Can't go wrong either way, but the TFS 1 cam can be picked up much cheaper, especially used.

Joe