Im with you, though with a BIG cam you'll also need a looser converter and steeper gears.. But if you run a stick...8)
A bit off topic but, I have the voodoo 60104 cam in my 283sbc 63 chevy pickup with a granny 4 speed, 9 to 1 comp and 373 open rear, and it can be quite a dog on the low end, but when the revs hit about 4800, hold on because your heads going over the back of the seat till the limiter hits at 6800.