I would either try his site at jdrace.com or post at the V8Buick.com site in the Got Gears portion of the Driveline and Chassis Tech section. He was last there on Wednesday. He may visit other sites more frequently, but I do know he is at the Buick one fairly regularly.
1968 400 Coupe, verdoro green, black vinyl top, auto 1969 GTO Judge coupe, Carousel Red, manual 1971 Trans Am, cameo white, auto 1970 Buick Skylark Custom Convertible 350-4(driver), Fire Red, white top, auto 1972 Buick GS Stage 1, Royal Blue, black vinyl top, auto