Locked out means NO Vacuum advance. Only Mechanical. So like Justin aka "1wild&crazyguy" is telling you with your cam you will need alot of initial timing at IDLE or it will want to stall or DIE without say around 24-25* AT IDLE, then when you rev it to 2500 by hand with the timing light on it you will see the timing advance and you dont want that anymore than 34* TOTAL timing, which would be called ALL IN 34* at 2500rpm or so.
With your cam it will probably idle somewhere around 1000-1200 rpm's, for reference only!