Disk upgrade question

[CG]

Im upgrading my 69 panel to six-lug disk with dropped spindles and springs. I recently read on one of the threads where someone thought that it pushed the front wheels out an extra one or two inches. Does anyone have the exact extra width they get pushed out. I was planning on running 8 in. rims on the front with a drop that has the tires tucked up in the wheel wells. Im not 100% sure on tire size yet, probably 215/75/15. Im thinking of running redlines and this is the largest size I can find in this style.