so I am setting up my motor to finally fire it this weekend.( been a 5 year project) I plugged the dist in , a non-computer HEI , and it seems to sit about 3/4 of an inch too high.. what gives? isnt it supposed to sandwich the seal between the dist. body and the intake? are there more than 2 typs of dist? It is engaged on both the oil pump as well as the cam gear.. I installed a HV melling pump on with a HD moroso pump shaft upon assembly. My only other thought is that the pump shaft is too long..god forbid. any ideas?