[Mark Markow]

you don't add lash . you set it tighter cold. the lash grows with heat. . the amount depends on whether it's an alum or iron headed eng ect. . mine for example with aluminum head , titanium valves is .016 int. and .018 ext. hot. and .010 and .012 cold. your best bet is to set yours cold at .018 and.020 cold and then reset it hot at the track , then when you get home check it cold. and that's your number.