I have the assembly manual but I'm a little confused about what exactly is the reference point. The only "starting" point I can figure out is a vertical line labeled [0]. Doing some cursory measurements this line intersects the rear lower edge of the fender.

What I'm having difficulty with is the horizontal lines, what is point [0]?

This is an authentic SS 396 and I'm out to restore this baby correctly.

As usual thanks for any assistance.

Francis

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1967 El Camino
1970 El Camino SS/396

Just reviving this one in hopes someone has an answer.

Thanks

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1967 El Camino
1970 El Camino SS/396