cam

Rodney says you might wanna change out the valve springs.

http://www.summitracing.com/parts/CRN-688661/
LOL!!!!

who is it that makes the "thumper series" cams? i cant remember. they arent "drag cams" but they sound like it. ill look and see if i can find out.
Comp Cams

Those Voodoo cams are great. It's kinda neato wherever Harold goes, the cam specs suddenly and drastically improve. lol
ROTFMAO, yep!!!!!!

A choppy/lumpy sound from a cam comes from the timing events. As well as a low C-line.

Try a cam that has the operating RPM band your working/driving in with a low centerline like @ 106. That'll scare the lesser's!