If one bolt is going in at an angle it's going to throw all the holes off. Put one bolt in loose and then start all the other ones, as stated above. The you'll want to tighten the middle ones first and work your way out. Do the cross over bolts last.

It's possible that you got a bad one send them an email and they should exchange it for you. But first take to stock gasket and see if all the holes line up, if they don't take a pic and send it with the email to them and post it here.