My first post in a loooong time, and here I am backing the wrong company! I grew up around Buicks, even the 72' Skylark Custom with the 350 4bbl that was my parents daily until 94' was suprisingly quick. Honestly, I think it boils down to tuning and the driver. I'm going with the Buick, especially with the 3.42 rear. With all the torque, thats all it needs! Believe it or not, Buick engines aren't really heavy (until you put that mile wide cast iron intake into the equation lol). I honestly don't think I would place a bet on this one though.