Im shooting a horton 150lb crossbow. I will be hunting whitetails. What would be a good bolt length and broadhead weight combo?

what length does Horton ask to use ? go that or longer. i think it maybe 20" and you can go 22" i think Horton has a min weight guide so that or heavier. i shoot 565 gr setup. i have 7 or 8 left of them. i will use them up before using my other assortment of collection of odds and ends.