LT1 Timing Problem!!!!

95 Camaro Z28, LT1 optispark was acting up so i tore it down and notice the timing cover seals were bad, pulled timing cover the chain had alot of play in it, so i replaced it... Put it on TDC lined up the timing marks, turn it over it has compression 180 degrees out, take it off do it again and still 180 out. Any help would be appreciated........