Ordered a new cam today for the W2 408

Sorry but I am cant see how this cam will allow you to rev out more . Other than the 106 lobes ...the duration is really short for a high reving motor.
I run a 246/250 on a 108 and my peak power is 6200. (W2 as you know)
I am no cam expert but would get a few more opinions. Try Jones cams etc...
And let them know you run W2s.