Used one temporarily to help prime the system on a newly transplanted engine that had been sitting for years. Mallory low-pressure. Didn't need anything like an oil pressure switch with 3 prongs. It was a simple 2 wire hookup.
Do not use a high pressure fuel pump. 3-5 psi should be ok.
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1985 744 gle d24t
1985 745 gle d24t
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