I am not sure of your setup. Most remote filter systems work off an adapter that spins on to the to the present threaded
oil filter fitting on the block. Are you running the old reuseable canister style where only the filter element is replaced and the canister bolts on with a center bolt? I must, admit that I am not as familiar with FE engines as the later families of Ford engines. If you were running a spin on disposable filter, some adapters use a threaded piece that is threaded on the inside also, to accept a specially drilled bolt that further secures the
oil line adapter to the block. Look at Ford SVO part number M-6880-C50, combined with part # m-6880-S, HD
oil filter mount. From there the two threaded holes are generally marked "IN" and "OUT". The out line is then run to the "IN" side of the remote filter adapter (it should be marked). The out line from the remote filter adapter is then run to the cooler. From there the out from the cooler goes to the "IN" on the adapter that is attached to the block.
The reason the filter is before the cooler is that in case of engine blowup metal pieces are caught in the filter and they do not clog and destroy the cooler.
Bill K