I know many run the split wishbone deal, but geometrically it's just not right, a four bar front and rear is really the way to go if you have to keep the old straight axle on the front....

As Uncle Bob said on the front end, the split wishbone design is the "traditional" way to go, but if you plot it out or look at a cad-cam drawing of a split wishbone it does not allow for proper wheel movement....and many, many will tell you that they've had one for xx years and it's perfect...but, it's not right in the geometry. Years ago in my circle burner days we thought the old super mods (a mid west name for them) worked great with the transverse spring and split wishbones---till the first time you hot lapped a 3 or 4 bar front car and could feel what correct front end travel was actually like!!!!!