After playing around with the fresh motor and distributor I've found that I can't get it to time at 0 degrees BTDC. If I move the distributor one tooth either way I can get it timed to about 5 degrees BTDC or to about 2 degress ATDC. The motor runs great at 5 degrees BTDC but I understand that 0 degrees is ideal for the 22R. All the engine parts are new including the harmonic balancer. Anyone have any thoughts on why this is? Thanks for you responses.

1985 Toyota Pickup
1994 Jeep Cherokee Sport