Everett

i have en route a pair of used stock heads and stock plenum...the plenum i am going to port as one of the fine members here has drawn me a lovely picture and directions on how to do it now what to do with the heads...i have no knowledge on head work and my car will see many highway miles as well as strip duty...can you guys give me some ideas as to what to get done to these heads to produce good gains...i will be runny a 100 to 125 zex shot thru this motor if that makes any difference....thanks guys