[KikRox]

if this is a stock set up with kleen air you'll want to install t's into the existing lines just above the vac ports on the carbs, the petcock and the egr both act as vac leaks and if you dont sync the carbs with both egr and petcock valves in place your sync will be out when you replug your lines. best to insert t's into the line so as not to disturb the vacuum circuits for left and right ports. some people will go "well that doesnt make sense" but if you factor in the two items petcock and egr it does make sense and it makes a big difference. the reason being is if your petcock or egr is faulty you'll be syncing to compensate for the bias vacuum pressure. they're right, bench sync then hook up vac lines with your extra inline t's to hook your manometer too and sync with mild touches with engine at operating temp. TOASTY.