Ok will i'm glad you got the install all set. For the fuel cut off i have no idea.

 

You don't really make much usable power above 6,000RPMS anyway. You'd just be begging to spin a rod bearing and/or bend a rod. Unless you're using a large turbo, you're probably better off shifting a good bit before fuel/ign cut.

EDIT: Derf. Bit, not big.