ok well my car kinda jerks and cuts out while im driving along.....im thinkin its the wires cause they are kinda old and beat up, but someone else said it might be the tuning(im running stock fuel maps on 570ccs and a 255lph). any other ideas, i might try the wires soon. also the tach wigs out a little everytime it happens, like it jumps up or down a few hundred rpms real fast..it seems to be getting slowly worse also. any input appreciated. thanks.