Bowtie, I think what these people are trying to tell you,and I agree, is that you need more mods besides 1:72 rockers to see anymore power past 5200.
The cam determines where the engine makes it's power and then you need good heads, exhaust,T/B, intake, etc. to compliment the new cam profile.
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'82 GT 351W C-4,BBK headers,Carter 625 carb,Comp.Cam,Flowmaster exhaust.
1988 GT...T-5,bone stock
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