slant six cranks but won't start

153624 is correct (most all straight sixes have this order) It doesn't matter much if the location of #1 is slightly different but this is how the plugs wires are cut to fit. rotation is clockwise. Take a plug wire off and use an ohmmeter on it to see how 'bad' it is. ~10Kohm/foot is OK. You dodnt mention rotor in the parts that were replaced. the rotor can go bad (not likely) or more often the button in the cap, but that is new. Same deal...measure ohms from button to center terminal of cap just ot be sure. There is a spring in there that can break, the carbon button can break due to cap misalignment when clamped on, etc.
?u=http%3A%2F%2Fi20.photobucket.com%2Falbums%2Fb226%2F2E151%2FValiant%2Fslant6dist.jpg