Everyone has their opinions, likes and dislikes but having had jacked up cars in the 70's and early 80's I cannot say I am a fan at all, I much prefer the low stance currently popular. The cars handle sooooo much better not to mention braking and cornering. But, this is America and people can do whatever "floats their boat", that said most people I have met that want a "snow plow" stance have never owned or driven one and just like the look; those that do it find out it is not practical or enjoyable at all. All this preaching aside, your options as have been expressed here are shackles, springs, air shocks, shock extensions or air bags. As noted, the extended shocks or even air shocks are not really good options as the shocks and their mounts were not designed to take the weight of the vehicle. If you do go the air shock/bag route, make sure the tire will clear the fender well when there is no air; many a 70's hotrodder shredded their tires when they blew a shock.