[TonyMadrid]

Have you contacted the manufacturer? If not, do so and speak with one of their tech people.

I'm using an MSD and when I built my 351W last Summer, I recall that in the MSD Distributor box there was a memo indicating that the gear might have to be changed, depending on what cam I was using. I called MSD and spoke with one of the tech guys and when I gave him the cam specs, i.e. part number, he said I was good to go with the gear that came with the distributor.

Before doing anything else, I would call the manufacturer.

Tony