alright i've visited that website at least a hundred times. and still with questions. but 1st of all, my 87 GT, would that be classified as the escort/orion 80-90? also when clicking that it comes up with xr4ti the rs turbo series 1 & 2 etc.. i assume for my fitting i would use the rs series 1 or 2 does it matter? next the wilwood disc brakes is that just the front? or rear? or both? and are their cams most ideal, or does someone else know of better? these cams they have tell me very little don't know what i can expect nor do i know if they are turbo app. or N/A or what!? why cant it be as easy as a jegs/summit site?