[QUOTE=Tb2k82CE]That is exactly what the guy at the vintage car parts said.  When he found I had an 82 Vet he stated that my Vet had Flat tappet cams and required special oil.  He went through the same issues that this discussion went through.  

He left it at that telling me to make sure I replaced the standard oil I had in the engine with at least an additive or an oil designed to be used om Flat tappet engines. 

[/QUOTE] That's great, sometimes you actually encounter (at the counter) somewhat of an expert. The guy knows what he's talking about!

I agree it is not often that the counter person actually know a lot.  I guess it is as much because he also restores old cars.  Some Muscle cars and some family type Cheves.   I really appreciate the information I get from this site.  I would not have know I was heading for trouble by changing my oil if it were not for this site and I sure would have guest that the guy was just giving me bull to sell me something if I had not heard the same thing from you guys.