Recommend at a minimum A&A Super sprag, billet front drum, steel spline front plantary gear, shift kit for valve body or reverse manual valve body.
Other recommended parts would be modified front pump (maybe with a max lug pump) with vent re-located to rear, Alto red eagle clutch discs and kolene steel plates, billet rear servo, 4.7:1 front band lever with heavy duty strut.
Billet front servo kit with "O"-ring sealed piston cover.
Because the billet front drums take the five clutches, the rear drum needs to be beveled, or you can just get an aluminum rear drum.
That is the basics, you can also go with rollerized output shaft (with manual valve body), and rollerized bushings, ect, and different compound bands.
