need advice: 440 in a Duster
9" tires don't work at a lot of tracks. I have trouble hooking up with 11.5 x 29.5's with a 10.50 Duster at my home track. The big end can be even worse if you are out of the groove a little.
With a big block car this can be even more of a hassle as the weight over the nose is far more than the rear. My car with the small block and aluminum heads was actually 60 pounds heavier in the rear