Thanks - I try to help where I can.
Knowing the RPM range of the vehicle is pretty important for cam selection - there's a big difference between 2.73 and 3.90 gears in terms of making the right power in the right RPM range.
Go ahead and try the DP if you've got the fundage - it is an interesting experience
Need more detail on the cam for an educated guess, but somewhere in the 400 HP/425 TQ range.