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Re: 454 with comp Thumper cam troubles
I am not a cam expert but the thumper cams are really made to sound really good at idle. I would bet your lobe separation is at 107-108. That makes them really hard to tune.
Give us you engine specs, cam specs
I am sure somebody more knowledgeable will chime in.
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68 c10 swb stepper
68 c10 swb stepper
67 c10 lwb
06 gmc duramax
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