I run 275 40 17 and 17 x 9.5 rear and 17 x 8 245 45 17 front, I have the shelby drop 620 front springs w 2/3 coil cut, sagged stock rear leafs and konis and I never rub on the front and only a hair in back with people in the back seat over a big bump going fast, have you rolled your wheelwell lips?

dont go 700lb springs, the 620's give great handling and they ride great on my car.......

my 67 http://htwheelz.smugmug.com

 

awesome, thanks for that set up info. we have the same exact front tires and rims. now ill just get a set of those springs you have and im set.
did you use konis shocks on all four corners. if so which model number did you use. thanks