65 C-10 drop

[mapatch]

i have a qeuestion about dropping my 65 for you guys. i previously heated the springs all the way around and i am pretty low in the front but want it to be level and have a much better ride. i am trying to achieve the lowest drop i can do but im not sure how i should go about doing the c-notch. i also am not sure how short of springs i can use in the rear because the control arms eventually will hit the frame. i plan to use 2 1/2 inch drop spindles and drop springs for the front. if anyone has any suggestions on how i can achieve the lowest drop please share and give me an idea how low i am looking at...