360 LA installing Promaxx Aluminum heads

Just tried test fit of new head. First one out of the box will not settle on alignment pins on either side of the block. Holes look good (did not mic yet) and they have a slight taper at the opening. Feels like it lines up, just won't settle flatly on the deck. One pin goes in and the other seems to sit on the top of the hole. Have not tried any force at all.. just the weight of the head itself. Is it typical to have to pull the head onto the block evenly with the bolts or maybe persuade it with a dead blow mallet??