273 Build
I think the carb rebuilders ball mill the carb bodies to make 'em shine. I never had a shiny Edelbrock for more than a month, and never found a dip that vrought it back. I believe most are too caustic (darken the AL) or too weak (dont work at all). Good ol simple green and a few toothbrushes. Nice. I wish I had your patience (and budget!) :-)