Holley Jet size

My buddy says he has a 20 year old Holley 650 double pumper new in the box I can have . I have a bunch of Holley jets and parts.
Any suggestion on what primary and secondary jet size to start off with? 340 20 over, around 10.5 to 1, Eddy heads . 4 spd, 323 gear if it matters? 20 Years old I have to open it up to inspect so it would be nice to start with something close.