Thanks guys and thank you boost boy for that reminder. I have a youtube video with that noise
I would appreciate any input on what it might be. I am thinking that boost boy hit the problem right on the head (the missing dowel pin). I had forgotten about that ( I was just so happy after the last time I had a problem and got it dyno tuned with nistune and all I just forgot about that dowel pin), Oh well, I will be taking the Top timing cover of and checking for tightness on all bolts. Anyone know where to get dowel pins?. it is a shame I have probably ruined a few CAS just driving around not realizing what that noise probably is. I will keep you posted. Oh yea does anybody know if I can get away with just replacing the stock exhaust cam with a Tomei 256 lash type exhaust cam or will I have to replace the set (both intake & exhaust). I'm also looking for a good stock exhaust camshaft that still has the CAS alignment pin still in place although I am worried if I go used and there's a problem with that cam I would have to do it all over again.
Thanks, any help would be greatly appreciated.