Just looked over the pics again, is that a crease/bend in the MHG near cylinder 1 and the front of the block? If so id just return that MHG and get a new one, when i ordered the one HKS one for my supra it came with a rivet/crease imperfection near the edge, and returned it for a perfect one. Just be better to get it correct now than to have sealing issues later due to the HG from the start.