I just replaced my stock clutch in my 2003 GT Mustang with a SPEC 1 clutch. My problem is taking off in 1st gear. There is just no smooth take off. My stock clutch was very stiff. At first I thought I just needed to get use to this one but I don't think thats the case. It feels like it idles too much when taking off. If I give just a little bit of gas as I let out the clutch it feels like it wants to stall. If I give more gas as I let out the clutch it jerks bad. Do I need a clutch adjuster or something?