out of commission, cant drive my dart anymore

swapped out the studs today. So ive been reading a bunch about alignments on this site so i can try and set mine. I read several times that the most castor you will get without offset bushings is 2* positive and they also say to start with the front cam all the way out, and the rear cam all the way in, then adjust the rear cam for camber. Ok, even with mine adjusted all the way out in the front and all the way in on the rear, the upper ball join still sits ahead of the lower ball joint, so i dont see how you can get ANY positive caster with stock style bushings...?
??