I use my ex to ride in the dunes and hit up the local track every now and then. I ride it everyday and I race my friends al lthe time. I am ithnking about a 426 or a 440. At the time I get the kit, the only thing I will get is a hot cams stage 2, and thats it. Which one wil be FLAT OUT faster for sand drags and smokin friends. One has a 450, another has a slightly modded z, and another has a stock kfx400. the only mod I hvae a is a K&N filter and sparks x-6 pipe.

Thanks,
Danny