Mopar subframe connectors problem

I've got a 67 Valiant, 2 Dr post. I've got Mopar subframe connectors. I can't seem to find a good place to bolt them on the front part of the frame, the bolts aren't long enough to go through the frame and the front plate supplied with the kit.... If I go to bolt them straight, the inboard hole on the connector is lined up with an open part of the frame (making it almost impossible to put a nut on the bolt.) I'm just perplexed here....