You may be ok with your current cam. My problem was that the 84's C.F.I. (LTD LX Automatic's came with only C.F.I. no 4 BBL.) was not happy with any changes. It could not take any cam changes without throwing the computer into a frenzy, and it did. Then when I put the newer roller cam engine in her it went crazy and the carb cam was the closest I could get to stock... Now since I installed the port injection I had to re-cam it and I didn't have a mass air cam so I called the good people at Summit and the Ford Racing cam was what was suggested however it is a bit much for what I wanted. But trying to find a stock cam has been alsmost as much fun as trying to find stock exhaust for the '91.... Oh the challenges of older cars.
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