Hello generaltdiss--  The timing order on the Ford E-150 engines from 1987 to 1993 was 1-5-4-2-6-3-7-8.  I hope that helps.  Fell free to write back with any tougher questions. I know everything.   Good luck from Bovan.

1992 through 1994 5.0 & 7.5 engines 1-5-4-2-6-3-7-8
1995 & 1996 5.0 & all 5.8 engines 1-3-7-2-6-5-4-8