What is the difference between the early ,and late, '70 Chevelle stripes? OPG only lists the style of stripes that started in April of 1970. The '70 was assembled the four week of February, so that would mean it should have the earlier stripes.

early ones were slightly narrower than the later ones.

The specs have been researched and posted in the past, try a search here in body/paint and one in restoration. Sure the are on here somewhere.

The specs are in the Factory Assembly Manual