ok here it is ,,, i got them off and they are C7AE-A with 14 bolt exhaust, standard valves,1.93x1.34 intake 1.84x1.28 exh. and 4.05 bore,, so i take these are 390GT heads
but now i have another set to get that are C6AE-R with 16 bolt exhaust but i havent took them off yet to determine the sizes of vavles and ports. Both sets are double spring and have the taller drip rails.