<VV> started car after sitting

[Paul Abel]

Hi All

I just got my 65 Monza sedan 110pg fired up after god knows how many 
years of sitting in a barn. Rebuilt carbs, full tune up, inline filter. 
After much coaxing, it fired up and ran on it's own. Engine only has 
37K. Problem is the clatter isn't going away. I let it run for about 20 
minutes. It seems to run good otherwise, right side is quiet, left side 
is noisy, and it's smoking a bit. I put most of a can of Berryman's in 
the crank case, and will change the oil, although it is clean looking 
and right up to full. Will the noise go away on it's own, or should I 
pull the valve cover and smack the lifters with a mallet? Thanks in 
advance for any advice.

Paul Abel