quick change gear size help

[Deish98]

Whay size quick change gear I need for I 55 Speedway I have a winters quick change 08 Shaw and 406 Chevy small block and I'm looking to get 8100 rpms

[JustAddDirt]

5.97 should get you close

[JustAddDirt]

5.97 should get you close.
I ran there once this year, and that is what I ran.