Mine ran the 5-12 but with major misfires. When I took it apart I ligned up the pass side to R, took it apart. Than I rotated to 5 o'clock position. Took apart the drivers side. I than had to rotate the drivers cam to line up as per picture instructions (the L) Than proceeded to reinstall per instructions. Than I rotated the crank a full revolution back to 5 o'clock. I than rotated to 12 so the keyway is facing up and reassembled the passenger side. Once all done I rotated a million times until the marks ligned up again to verify timing was dead on. Hope that helps.Did you find out with misfires or? I'm curious if anyone ran theirs with 5 to 12 rather than 5 to 5 to 12. And how did you get the links to line back up?