fuel pressure

could someone tell me what sort of pressure in PSI I should be seeing at the supply line to my injector pump, and also what sort of flow rate.
I believe I am having fuel starvation issues with symptoms of overheating, short periods of loud clattering and erratic boosts and lulls in power.
1986 F350 with 6.5L chevrolet diesel (non turbo) conversion.
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