I'm thinking that you should be able to mount a stock type fuel pump.On the 90 318 there was a block off plate bolted where the pump goes.It's possible MoPar didn't put the excentic piece on the cam gear(it's a off set cup under cam gear bolt) if its there no problem.If not you'd have to remove the whole timing cover/waterpump to install one.If thats the case electric would be the way to go.Good luck

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83 B-150 slant 6,4 speed. 79 B-300 360 pathfinder 4x4. 74 W-300 318 4x4 git-r-done 80 B-100 sl6,4speed

If you cannot use the mechanical pump (actually, even if you can), why not stay with the electric pump in the tank, and use a return flow pressure regulator.

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225