Wingnut has it. It really depends on the shaft material you want to use. I favor 3 Rivers Archery's arrow calculator, its free, and its easy to use. If high FOC is your goal, and funds are tight, I'd steer you to carbon shafts. Wood makes a heavy arrow is overall weight is the goal. More info on your end-state is needed im afraid. Bear in mind, on here and anywhere else people will only get you close. Tip weight and brace height tunning will probably get you where you want to be.