its still off
for the 4.10s and 4.30s it would be more like
4.10s 2500
4.30s 2650
those cal. are not all that good
you have to go by real world numbers
like I said before in 5th gear a car with a 3650 is at almost the same rpm at 75 with 4.30s that i am with 4.10s