Alright fellas, I'm planning on doing a 4 link set up on my 68 fastback but I don't want to spend an arm and a leg on a kit. Any suggestions?

 

i think you`ll be wasting about 2 grand or more .. why do you want a 4 link ? ..you will have to install a rear subframe .. ( hack up your floor pan ) then attach that to the front subframe if youwant stiffness .then have a rear end welded up for 4 link mounts buy the expensive adjustable shocks ..stock rear leaf springs with at most a set of caltracs will handle 800 horses easy ..i`m not saying dont do it .. just it aint worth it ...people do it when they build something from scratch cause it is easier ...