Dan98
Senior Member
Comp cams has a grind on the thumper cam I put one in my 2nd gen and it sounds great with duals to glass packs. Has low to mid range power 1500 to 5000 I also advanced cam timing 2 degrees and brought power range down a few hundred rpm.Most cams that act that way are high rpm power cams and aren't really the hot ticket for getting a 5000+lb truck moving without a helluva lot of gear and stall speed.
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