I think that people saying that the thumprs are more show than go are mistaken.. Unless the combination I am running is just perfect.. But thanks for all the feedback!
They sound more radical than they are is what people mean. My car makes the same power as my dads. His has a muther thumpr. Mine idles like a kitten, his sounds like a top fuel dragster. That's what people are saying. You can make the same power with better manners.