Big Block Torsion Bar Selection

I'm going to be doing street driving with occasional strip use. I'll be building a ~470-500 inch stroker from a low deck. I have two sets of torsion bars to choose from here: 1.14" and .88". Which way should I go? I had picked up the larger bars here a year or two ago figuring they would be best to use given the extra big block weight, but I've been hearing of people running slant six bars (which I believe are even smaller than my smaller pair), so which should I use? - 68 B'cuda notch 727 auto s/s springs out back

Thanks