Ok thanks. My rockers are pretty worn and was thinking that this is my excuse to buy rollers. But there isn't a whole lot of room between those valve covers and the turbo/carb plenum.
Harland Sharp, T&D, T/A, and Kenne-Bell all have sets for around $500. I don't believe they're cost effective for any hydraulic cammed Buick. Stock replacements from Sealed Power may be the hot ticket here. GB