hey guys i hope this doesnt get asked way to much. but hears the deal the stock head on me and my buddys 84 capri rs turbo is cracked the motor is fully built besides the head which needs to get replaced. so my step dad can get any 2.3 head from his work, i know there are some minor things they changed on the head. i need to know what year modle ect is the best head. when my step dad seached he had 4 different stock heads.