I thought I heard a helicopter going over yesterday morning, but it was my buddy Chris in his straight-piped 03 3500 lwb (Snowball) with 309k coming over to gloat. He (finally) got around to checking his valve clearances and had to come tell me that they were all dead-on, except for number 5 exhaust, which was . 001 tight. His cell phone pictures showed a valve train, valve cover "clean enough to eat out of". Looks like that Amsoil and bypass filter is doing the job! . He has talked to TC about a new CP3 and injectors, even though it runs perfectly. So much for a Bullydog (336/666 dyno run, '08 TDR issue 59 page 101) and later a Smarty blowing up injectors! Mark