Shift Kit or Not?

As mentioned John will set it up for the way you tell him you want to drive it. For what your doing all that is needed is some minor modifications that don't require an actual shift improver kit. Like the way I'd set up a taxi or police car trans. If you do choose to go with a shift improver kit a Trans-go TF-1 will firm up the shifts nicely.

BTW: as far as a 375 hp engine making your trans. slip, unless the trans. has a problem that won't occur. Also note that a loose converter softens the shifts somewhat so don't be afraid that a mild kit will make it shift too firm for you.