Brian,
Thanks for the info. A wrecking yard at French Lake, Mn, said they had a set out of a "1966 Special w/ a 401"?? I will call them again tomorrow. I've been a Chevy Impala person for 40 years and this is the first Buick (1965 GS) for myself. My wife loves the car (so guess who gets it). I recently purchased the car and also just found this great website for info. I know a little about this car cause I'm doing the work on it. People like yourself are an absolute great resource for me. Thanks again.
Richard