ms93gt said:What is better on gas, hci or kb?
I don't want this to be a "bias" answer but if you get a nicely matched h/c/i combo it will give you a better increase in mpg IMO. I gained 3-4mpg better with mine and I don't drive it just easy...I got 24mpg (untuned) a few weeks back...I average 21-22mpg in mixed driving. With the KB you will be in boost quite often like Dagger pointed out...
Edit: I think a 327 geared AOD would be nice with a KB h/c/i car...with a decent stall...I bet it would launch nicely