bent cam shaft

Anyone,

What are the symptoms of a bent cam shaft? Dropped my car off for paint touch up and after leaving it sounds a little different. Around 40 mph or better I have a sound and feel like something is out of balance or out of round. I'm thinking the shop guys might have done burn outs while holding on the brake, not sure though. The odometer read not even 1/10 on it from the time I dropped it off until I picked it up. The drive shaft and u-joints are all new. Do you think maybe the shaft lost a weight or the u-joint could be going bad if it is new? Any advice would be helpful.

Thanks

I would be headed back down there to OPEN UP A CAN OF WHOOP ASSSSS for sure if that is the case!!

As the saying goes, not mine I didn't pay for it and I don't know what it took to get it where it is so who gives a rats ***. BS