I had a shop install a set of gsc 272/264 cams along with a pro 1 manifold. After I got it back I'm getting alot more noise from the engine bay now, Kind of like a light tapping and rattling with engine rpm's. I was told it was from the manifold and o2 housing being thin wall tubing and you will hear more noise. Has anybody heard of this and do you have any noises from your engine with cams and manifold. I had them check the lifters and they said they were fine.

 

This has been COVED.... But I think your engine is going to blow in 100miles!

WARNING!!!!!!!!!!!!! DONT DRIVE!

 

I know the lifter have been covered, but that is not my question.