When your looking at cams everybody automatically thinks lsa is where you'll get the choppy sound. Not necessarily all the time. Centerline has a lot to do with it. And the cheater v3 that quoted previously sounds super awesome in a 4.8. In a small cube motor you deffinately do not want to go with alot of overlap cause you'll start losing cylinder pressure which in result is less torque and a 4.8 does not need to lose any more torque. Like I said call thunder they will give you exactly what your looking for.
2008 silverado Z71/ forged 370 with P1sc 3.5" pulley 11lbs of boost,PSLT's,TSP 224/230 .581/.591 115, ORY, built 4L60e. Tuned by Mike @ Thunder Racing