I think we need a little more technical information in order to give you better responses, but based on what you've provided:
1) With 10 psi and ported heads, intake, exhaust, etc, I would say you should upgrade injectors to 30 or 36's.
2) Definately upgrade the pump - 255 or 190lph.
3) Are you running an FMU? At 10 psi you should consider it.
With more details we can provide more useful info.
Take it easy,
E
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1991 5.0 LX Coupe - 38,000 miles
13.17 @ 106.14 mph w/ 2.138 60'
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