hey Sinister, if carbs belong in museams than why do 85.5555% of today's rodders still use them? I know cause you don't need 2 wire them, Predator carbs ajust themselves and wow If somtin aint broke, dont fix it, this is why the 350 Chevy has been around for 35+ years. I'm assuming ur turbo buick is the 231 or 235 that was used in the 1985 - 1987 Buick Regal Grand Nationals? Sorry but I have no knowladge of pinion angles.