Edelbrock RPM? Are we talking carb intakes? That will not work if you mean for a fuelie, 5.0 intakes aren't interchangeable with 351W's. Try TFS for that.
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'91 LX Hatch, 17 ROH ZR6's, lowered, 3.73's, offroad H pipe, SN Cobra cat-back, ASP pullies, 14° timing, C&L 76mm MAF, 170A 3G, B&M Ripper on a T5
1991 LX Hatch 5.0L