Mark white

Hello,I purchased a used Massimo hs700 efi tying to get it timed ,from what I've been reading,the crank has dots that need aligned then cover installed,then last Slash on flywheel used to set timming,ok,but I have tried to set timming using slash mark and also top of h mark ,it starts but runs like crap ,so could those dots on crank be off any help would be appreciated