I can shift my 408 at 7600. I back it down to 7400 as it makes no ET difference. I Worked for the nation's biggest performance parts reseller when I built this engine. Buying parts at WD cost I still have 12k in this engine. It's a race engine I can street (barely)...not a street engine. Your 8k RPM goal takes away from every other thing you want to check off the list.
Chase a HP goal...Or budget....not just one "cool" parameter.
I have this conversation daily at BluePrint.
There's guys that run 9's on street tires and shift at 6k. Don't get hypnotized by one bragging point that ruins every other goal.
