Yeah...I’d hold off on the FD type of damper unless you bought a real Fluidamper with the recessed face. If you have a standard FD or chicom knockoff you’ll have to space the pulleys and brackets out .750 inches. It’s a royal PITA unless you have access to a lathe to make nice, square spacers or I guess you can fudge it and use washers.
Just remember that the water pump pulley has to be spaced out .750 from the water pump itself to start, and then everything but the damper pulley has to move out that much and then you have to get all that crap lined up.
March Performance does make a serpentine pulley set that you can buy and then use all your stock brackets and such and then it will all bolt up, but it ain’t really cheap. May be a better option. I know I’m switching my junk over to that deal because it’s cleaner. And the water pump is overdriven 14% or something like that which is where it should be.
