Sadly, you have the worst possible headers for a small block installed currently. There are many others out there using this same bad design; Hooker Comps, Blackjack, Summit, Headman, nearly any budget header is going to have this same problem. You may not have noticed this problem yet, but they wrap around the steering linkage as well and require dis-assembly of the tie rods to remove the headers.
Options are as pointed out above- slight lift up front or a swap to a manifolds or different headers.