1/4 mile times

ok alllsoo another question... im going to get my tach tonight and i saw that the car wasnt running a revlimiter. so im gonna go and buy the little modual pack. around what rpm should i put in?

id put it maybe 2-300rpm higher than were you plan on shifting at...mind you, if you are messing with optimum shift points for your motor (I dont know as i didnt read the entire thread) its probably better to get a digital one that way you can constantly adjust it without pills