mancini or jeggs leaf spring xhd 340duster

Thanks everybody for the input. I plan on leaving the torsion bars at the moment but im sure I will re-visit after a while. I have 14" rally wheels with cooper cobras which I hate because they are tiny and the previous owner made the choice. I was thinking 275/6015 in the rear and 245/60 15 in the front would work with nice. Why the lowering block? Is it too high? Sireland67

It was too high, but I only have about 500 miles on them so it will settle down some.
245/60/15 will not fit on the front, max front size is a 225/60/15 or a 215/65/15.
This is using a 15 x 7" wheel with 4.25" back space. (factory steel or rally).
The 275 fit the rear with no issues using the same wheel.