2007 America

I'm ready to make the move to punch out my bike.

But,,,,,,,do I go for torque, or power.

The 865 HO kit can give 30 horsies with similar set up as per Zmillins

OR

A 904 kit, which will give me bottom end Grunt.
I'm assuming the 904 is a torque machine.
The 865 HO is a power monger.

Which is more durable?
Which is more fun?

Well this is a start,,