when i started planning my truck, it was in between back halved 4 ling or back halved ladder bar.
the back halved ladders are much much easier to tune but limited. the 4 link has , iirc 240+ combinations. the proper 4 link with good adjustability and splined anti-roll, like haller has, is built for 1.30's from chris alston chassis worx . its gonna take lots of dedication and somebody who truly understands the geometry. i know gene understands, i think he cut a 1.49 at 500 horse and little tuning to the rear and did not have the tuneability that this setup has. i remember david and richard both having a hell of a time. maybe getting somebody who tunes them (richard just might know a guy who knows a guy) ... and that will help you out lott. SOOOOOOOOOOOO much is being lost there.