I forgot to use compressed air to blow out the block head bolt holes UNTIL the new head & gasket were already in place YIKES any oil water or gunk on a head gasket might soften it and eventually cause a leak..!
Good Luck FMS88 really helped me in fixing my truck with a new head ~ the Chinese head looks thicker & stronger but you tube videos say Chinese camshafts are too soft a material ~ so I began using high mileage full synthetic 10w 30w oil + a bottle of zinc additive