well your right but 5.13`s with a 29 hi tire at 120 is 8000 rpm. guys are doin it with low budget 383`s but its in the gray zone.. couple seasons of running and you may very well need deep pockets. anyways, for 8th mile really even 5.38`s ,5500 stall and brake 6.90`s are in store... really we drift, he asked what the car would do with his planned set up.