What plugs should I be using with this swap? Should I just keep the originals and gap larger, or go with a different plug? The plugs that apply to the donor vehicle are a tapered seat type, so those are out. Mine is a 66 292, the donor was an 81 292.

Also, I read somewhere that the advance mechanism should be a 10 degree......mine is a 20 degree. Should I change this as well??

1964 C-30 http://s1179.photobucket.com/albums/x383/autoart3/64%20one%20ton%20dually%20flatbed/