headers on a cj5

I recently purchased a 72 cj5 with the 232 6cly. engine. I was the middle of putting or patching it up and wanted to put headers on it. I went and picked up a decent set out of salvage yard that came off of a 75 cj5 . My problem now is installing the orginal intake back on. The bolts are long enough to tighten the intake but not the header flanges. The headers are a 2 peice set and since the old exhaust manifold shared bolts with the intake it doesnt seem to tighten the inside flanges of the headers. Are there any spacers or adapters that I can buy to fix that or does anyone know a way that this problem can be solved easly and pretty cheaply.