Once you bolt on the heads, you would pick-up HP/TQ from a 'better' cam. However, most 'better' cams will have more of a lopey idle than the stocker. That's just how it is. I had a mild Steeda cam (#19) and even that sucker had a much more agressive tone than the stock cam.
With all that said, where do you want the car to be in the end? Drag car, mild street car, weekend cruiser?
E
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1991 5.0 LX Coupe - 40,750 miles
331 cu. in. / Tremec 3550 / BFG Drag Radials
12.22 @ 114.31 mph - w/1.89 60'
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